No Injector Pulse Or Spark

Now we are ready to start the car. Sil240 Posts. I would look at the ECM where the harness connects to it for. Lack of spark would indicate an ignition primary side problem which would also cause not injector pulse. When you turn the key, the injectors do not pulse. disconnect injector plug. please if theres anyone in the south jersey area that is good with wiring, come help me and we'll cook you a nice meal and get your beer of choice, i really need this car back. 0l it was ment to be running turns out when she got there the battery was flat, the keys in the ignition the guy tried to jump start it when he put on the jumper cables the doors locked with the keys in the ignition, after thay smashed the window to get in the car wouldnt start, i had a look over it and there is no spark and no injector pulse the fuel pump is working. Do I now need to investigate the apexi circuitboard more or could it have shorted in the apexi and blown the igniter which feeds the coils?. Working on a Ford Probe GT. My search still continues. pickup coil. Most ECMs use a driver to supply the injector with a ground to fire it, but only if it sees a spark. You should still have 12v at the harness. Also, I did test by myself. My V6 was running smoothly yesterday, then 20 minutes later would not start. help - no spark, no injector pulse, no run Oct 30, 2009 More results from dodgeforum. No spark or injector pulse. Status: Offline. Just sit down and watch. Check to see if there is a code stored, either one failed will set a code. Other times it starts right up. If the spark is clean and matching engine rpm but the injectors are not then check the signal from the Throttle Position Sensor (TPS). Module is in good. Both are very popular for failure. 6 liter that has intermittent start issues. If an injector, or injectors, are not on spec, the ECU will attempt to correct flow delivery via altering injector pulse, but it cannot correct the faulty injector(s). I use some diy method to test it. This is actual a 24v 2. I'm just looking for confirmation, or if there's anything I missed. I due have spark though and fuel pressure also I can make it run on carb clean spray and also the other. So my issue is I havve no injector pulse. With this video I want say thanks to you PAUL DANNER I fixed this chevy venture 02 3. Have checked resistance/voltage on injector end of looms and all is normal as well when the car will not start. Still no spark, still no injector fire on num 2 cylinder 12-07-2017 #13. 8 swap in a corrado but i figured the situation applies to a standard 24v as well. Mercruiser 4. - the ECU ground wires are not not connected to a suitable ground. You can keep your original and have this one as a spare. Changed ECU, cleaned grounds and used a jumper wire to create some new ones. 47V from bat ground to plus pins on injector connector from pcm. It has no spark or injector pulse. It's a 50-50 toss on that one though. WHAT things make the DME ouput an injector pulse, or maybe, more accurately, what things will KEEP a DME from ouputting an injector pulse. btw its a 96 vr gti ant help is greatly appreciated. PURPOSE OF THIS ARTICLE Learning how to interpret injector drive patterns from a Lab. I trust you used a noid light or led test light to check for injector pulse. It's not the radio suppression relay, not the fuel pumps, there's spark,. So we went to fire it up, crank but no start. My friend has my hp tuners, so I won't be able to scan it until tomorrow. i am running out of patience with this car, i have spark, i have fuel at the rail, cranks and cranks but still won't start. WTH! then checked to see if injectors are working. If you have spark, fuel, and injector pulse but your engine still does not fire we'll have to check for the third element of internal combustion: compression. 0L Turbo Powertrain (EJ Series Factory 2. By having full spark from the coil and full spark at the plug wires coupled with 12 volts on either side of the coil and to the TFI run and start wire, I think the spark side of the equation is fine. 1 ltr, No Spark, No Injector Pulse 2 Answers. If you pray ether into the engine IT WILL run. The sensor in the distributor is the camshaft position sensor and it has nothing to do with fuel injector pulse width, or ignition spark. Hey everybody, i have a 1989 nissan d21 4x4 3. - Answered by a verified Nissan Mechanic. The Fix After verifying that there is consistent spark from the coil, disconnect the injector connector and check for power on the red wire during cranking. This time no jiggling or messing would help. i have replaced coilpack, crank sensor, and a few more things. On that rare occasion the PCM stores a Diagnostic Trouble Code: P0335: No Crank Sensor Signal Detected. 10-25-2004, 12:01 AM. 3 no spark or injector pulse \015 I have no rpm input on scan tool. This test will tell you if the computer is pulsing the fuel injectors open when cranking the engine over. Joined Dec 26, 2013 · 106 Posts. A faulty sensor, computer, ignition module, etc. All grounds are clean and tight, the CKPS and TDC sensor ohm at 2. We had it on the dyno the guy was trying to get it tuned but was having a hard time tuning it because his. Battery voltage to coil and igniter. rpg5553: Built Motor Discussion: 0: 10-22-2010 09:18 AM: No spark, No. I have checked the. Miata won't start. Engine Will Not Start As with any no start symptom, always check fuel level first. During one of the episodes my mechanic came to my house and with a diode determined it had no injector pulse. The engine has only 5,000 miles on it. General Diagnosis. 2004 Dodge Grand Caravan SE 3. We tested the power off of the coil pack connecters and they are showing that we are getting 12v so I dont think it's a grounding issue. The owner switched the ignition module over to tbe 86-87 module. Topic Viewing 12 replies - 1 through 12 (of 12 total) Author. Maybe they arent spraying. The 4-wire plug on the left (also 92 engine harness) has no match on my 91 distributor, but the big black/yellow trace wire was 12 volt and placing it in the two-wire plug gave me spark, but no injector pulse. No injector pulse or spark?? Discussion in '94-95 5. Here is the checklist: Painless wiring harness. But those damned fuel injectors just won't open on their own. I'm just wondering if anybody has encountered this. I replaced it. thought it would be ECM but replaced with another ECM from working truck and still not pulsing when trying to start. If they are good, you will need a pinout of the PCM so you. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. I can't ever get spark or injector pulse. That was ok because i was building a 1. Thing's I have checked. More Electrical HELP! No injector pulse, no spark from coil. Replaced crank positioning sensor and computer. i replaced cranks sensor, ignition module, computer, an the coil assemblies. The engine studders and has terrible rough idle at like 550rpm. I have a 911 as in the title no spark and no Fuel I have no spark No Fuel but fuel pump runs when powered DME relay is supposed to be new DME relay Pelican Parts Forums 85 911 No Fuel Pump, Injector Pulse or Spark - Pelican Parts Forums. wtf causes this?. If the ECU shows no change in the MAP voltage while cranking it won't pulse the injectors. Have checked resistance/voltage on injector end of looms and all is normal as well when the car will not start. I have spark, fuel after the fuel filter, but for some reason the injectors arent pulsing. 2 used to be hooked up and ran fine. security lights not on but i believe it's in the security somewhere but my manual gives me no infomation other than it shows the decoder in the. That is, the 12 volt supply. Do not seem to have pulse on negative side of coil when cranking. How to Test Fuel Injectors. please if theres anyone in the south jersey area that is good with wiring, come help me and we'll cook you a nice meal and get your beer of choice, i really need this car back. I have tested every wire and went through the vortex Buick no start tree. I've been fixing little things on it including the a/c thats on the engine and have been running it and shutting down no prob. The next step is to make sure that you do have fuel pressure with a fuel pressure gauge just to make sure the fuel pump is not a secondary issue. Check to see if there is a code stored, either one failed will set a code. When the engine is turning over, the light will pulse. i am running out of patience with this car, i have spark, i have fuel at the rail, cranks and cranks but still won't start. 0 - Specific' started by SN95. ordered ecm programmed to my vin # installed and performed passlock reprogram. Engine cranks fine and fuel pump runs. I have no spark or fuel pulsing when cranking. Joined Jun 19, 2006 · 3,923 Posts. No pulse at injectors. 1997 E320 no fuel injector pulse after front end collision. There arne't too many things that will allow the ecu to spark and run the pump on but NOT pulse the injectors. Jan 19, 2013 #20 Make sure you have 12v power to both pink/black wires in the connector, along with both of the gray/red wires. can pour fuel in trottlebody and will run til fuel is gone. The spark problem was the module being miswired by the person who worked on my car. I still don't have injector pulse and I'm really leaning towards the injector harness itself. 0 bar boost, and better low-end driveability. Purchased new set of stock fuel injectors and replaced. 1997 - 2003 F150 - No spark, no injector pulse! What's up? - Hi Everyone, I've got a 2001 4. We have bypassed the VATS. No fuel injector pulses from the fuel injector connectors as tested using a Noid Light. My friend has my hp tuners, so I won't be able to scan it until tomorrow. 0t TSI OEM Fuel Injector. Rundown of failure: Was hard to start on occasion, with 20 seconds of cranking and then finally started. 3 no spark or injector pulse \015 I have no rpm input on scan tool. 0L Turbo Powertrain (EJ Series Factory 2. Number 6 fuel injector is not getting any power to it. I discovered one of the coils was not working. A spark that jumps gap in free air can sometimes fail using the spark tester. So i'm just trying to star my sr, the engine crank, the fuel pump work, but got no spark and ingector pulse The ecu send me a code 11 ( CAS) when i try to start the engine but i chek the my wiring many times and chek the CAS as its tell in the FSM and every things ok, grouns are all ok too. Why would my ecu not be sending a pulse? The 2nd ecu is off a working car. can pour fuel in trottlebody and will run til fuel is gone. Just got the motor in and ready to fire but it has no spark or injector pulse. The engine has only 5,000 miles on it. i have a 94 mustang gt with a no start issue. will be displayed: Single Pulse test will test for clogged injectors, Multiple Pulse tests will test for sticky or sluggish injectors. Page 1 of 2 1 2 Next > Jun 24, 2010 #1 fuel injector spray AND spark control are both run by the TFI and PIP. That was a month ago. Check to see if there is a code stored, either one failed will set a code. i replced ecm with remanufacter unit same thing. 9 Gas; when it was delivered to me it ran but needed an intake gasket let is sit for a while and now it won't start, no injector pulse, no spark verified the computer was good (swapped it into a different truck) moved on to the cam position sensor. 3L cranks but no run no spark no injector pulse new member, truck was pawn off on me. Checked for power to the coils and don't have anything on the middle terminal. So, i downloaded the datsun manual and started testing the 35 pin connector. I went through the wire job on the new module and found out he had the crank signal and ground wires backwards. Manually tested pump, both speed sensors, maf etc & all test within acceptable ranges. I have fuel pressure at the rail, fp works, I have spark. Any ideas on what to try next? Im lost! Thanks in advance. square inch for each of the three fuel gas constituents appears to be satisfactory for a “spark-plug” injector. I still don't have injector pulse and I'm really leaning towards the injector harness itself. I went through the wire job on the new module and found out he had the crank signal and ground wires backwards. I was wondering if there is anyone in Australia I can get my auto electrician to talk to about the problem. (Engine would not start with starting fluid and no spark arcing from high tension coil lead to ground across a gap of approx 3 mm. This is actual a 24v 2. is the car throwing a spark?. I have spark, but now we have finally discovered I am not getting any fuel into the cylinders. The Injector 12v SHOULD be fed from a fuse in the fuse block, might be the same fuse that feeds the 12v to the coil/ ICM (hence no injector pulse with noid lite or spark) I take it it didnt fire up with the carb cleaner either?. No injector pulse is usually a PIP problem. also check sensor ground and ECU ground. 95 GMC C2500 5. Also, make sure that you actually have power to the injectors, as there are 2 fuses that supply them. The car has a new crank sensor recently installed ran well for a while and now has no injector pulse. Since that post I have wired in a different harness and checked all powers and grounds and I see no problem. 1999 Honda accord 2. 0L Turbo Powertrain (EJ Series Factory 2. 73 450SL No Pulse to Injectors HELP PLEASE. When you first turn the vehicle on the spark plugs sends a single spark, So it must be connected properly. long story - Bad couple of weeks for my S6. Still wont start. Won't start on starting fluid either. We were able to get a injector pulse and spark one time but have. The procedures shown in this video can be applied to all cars! First we test for spark, then injector pulse before finally focusing on the fuel pump and related circuitry. Electric Fuel Pump – A 12-volthigh-pressure fuel pump, (located in the fuel tank) supplies fuel under pressure to the fuel rail on the intake manifold. problem now, tried to start nothing cranks ok, no start , good fuel pressure , good spark. - the ECU is not getting the correct information from sensors. This problem started last fall when i was winterizing it just died out while running and wouldn't restart. As I turn the distributor by hand the trigger points activate the fuel pump so I know that much is working. No fuel injector pulses from the fuel injector connectors as tested using a Noid Light. That's why we need to know if you have a very consistently timed and solid spark or just an occasional spark. No injector pulse or ignition is usually active immobilizer system, esp. Basically i have no spark, no injector pulse, no start. So, while the coil output resistors were damaged, you clearly still had spark and you also verified that you had injector pulse to all four injectors. What else could be causing my injectors to not fire?. 2 minutes later they come back to life and car starts U can tell when the car isnt …. Customer Feedback. I have 12 volts to both injectors. ive checked all sensors with the help of helms ,have spark have fuel pressure ,timing right on ,we have 12 volts to same color wires on all injectors but no ground pulse so i back probed the wires coming out of ecu to injectors and they have battery voltag instead of ground i guess i need to ask if i did this right and if so seems like ecu is bad ,99 prelude base auto bone stock bought it not running was told it just would not start one day. if power is being supplied to both injectors and coils. Pulse width is a term to describe how much average voltage is applied to an injector coil over a given time span - typically about 2. "take a test light. 75 volts to trigger the TFI module. Recommended Posts. Spark plugs are bone dry even after X time of cranking. Here is a partial list of the cars that used this style fuel injector. STravis · Registered. Lack of injector would not cause backfire and pops but erratic spark would. I used the following for my three wire hookup to the engine harness from the AAW accessories connector: dark blue fuel to gray fuel power feed on harness, orange BAT1 to orange constant power, and pink IGN1 to pink ignition on harness( this also says. Chevrolet k1500 getting spark to all plugs, gas to TBI, continuity from ECM to injectors, but no pulse to injectors. Fires with starter fluid but nothing without. I'm having a severe issue I bought a 87 mustang off a guy a few years ago I put a new aux shaft in timed the motor and the car ran great for about 6 months it has the 2. As you let go of the key and return it to the run position, the injectors give one squirt. Re: 2002 f150 no spark or injector pulse Post by tater69 » Sun Oct 04, 2015 4:36 pm so from what i have been looking at that is the cruise control cut off switch would that going bad cause the truck not to start. If you do have all of these, then we would look to other areas. 2001 saab 9-5 starts then stalls, no injector pulse. Fuel pressure normal. Is the PCM dead? Wore out the Haynes manual on this one, so I need you guys to help!. Great brakes when first applying the petal. But stop once you stop. In case of that, there is no injector pulse or spark, this means that is your ECU. Still no spark or injector pulse. I banged my head against the wall for a while, then started poking around. I have no spark or fuel pulsing when cranking. If I hook up my snapon analyzer I can manually pulse the injectors so I know that all works correctly. i change the new spark plugs because the spark number 2 dirty with enough carbon, as the exhaust of an auto diesel engine, we test pulse of injector and no pulse in the injector connector number 2 I do not know what other test we can do apologies for my english I just try to communicate with the forum to solve the problem of my car Thanks A lot. By having full spark from the coil and full spark at the plug wires coupled with 12 volts on either side of the coil and to the TFI run and start wire, I think the spark side of the equation is fine. I'll edit this thread as solved. 2006 nissan xterra 4. So I was gifted a very well maintained, garage kept Sierra. Experienced tech stumped: turns over but won't start; no injector pulse. ? Just a thought. One of the guys that i meet, he told me that might be a distributor problem. Just got the motor in and ready to fire but it has no spark or injector pulse. When the ignition is on there is power on both of the wires going to the fuel injectors. Yes and its pin 20 and there is no pulse on that wire at the ecm or distributer. The problem has been on going for a couple months now. I have a 1990 1500 with no injector pulse. The ECU cannot pulse the injector without an Ne signal and will not start or run if this signal is not present. Is there a setting on the pcm that could cause this? Crank or cam sensor? Any ideas?. Verified good fuel pressure at the rail, verified spark. The 4-wire plug on the left (also 92 engine harness) has no match on my 91 distributor, but the big black/yellow trace wire was 12 volt and placing it in the two-wire plug gave me spark, but no injector pulse. I have fuel pressure, but no spark or pulse. If the sensor is bad then the injectors won't turn on and there will be no spark. My friend has my hp tuners, so I won't be able to scan it until tomorrow. installed my new motor today and have no pulse. 4L will intermittently not start. 8 people found this helpful. Took your advice and replaced the fuel pump harness. There was no spark or injector pulses when it was time for start up. I get spark at plugs but no pulse to the injector therefore no fuel and no start. I have no spark or fuel pulsing when cranking. It's not the radio suppression relay, not the fuel pumps, there's spark,. First up, check that you have power at the positive side of the coil with the ignition on. Im trying to get my car running. 2 minutes later they come back to life and car starts U can tell when the car isnt …. Stopped in traffic. Once you've verified if the injector is spraying or not, RE-INSTALL the injector back into its cavity (in the intake manifold) and proceed to the next one. So that shouldn't be the problem. ScannerDanner 123,033 views. By having full spark from the coil and full spark at the plug wires coupled with 12 volts on either side of the coil and to the TFI run and start wire, I think the spark side of the equation is fine. Also checked the fuel rail. I didn't want to bore you with the entire series of events so I left out what I felt wasn't needed to say. No "Fuel Injector Pulse" can be caused by a faulty computer, wiring, or a computer. 9L Distributor ignition, multi-port injectors 2 fuel pumps (pre-pump in tank, main in frame, both are new) New ignition module (2nd new one) Car runs for 30 - 58 seconds and then looses computer pulse to injectors, does not lose ignition spark or fuel pressure Any ideas what is causing the loss of computer pulse? Additional details. (i figure this means pip sensor is good as well) fuel pump primes, has pressure at schrader valve verified tps. 1987 gn, has no spark and i only have 5. In relation to your no injector pulse problem, check the wiring harness from the distributor to the ECM. Similar Threads - spark injector pulse Forum Date; Have injector pulse but no spark: 4th Gen Camaro LT1 (1993-1997 Camaro) Oct 11, 2019: Spark Plugs: 4th Gen Camaro LT1 (1993-1997 Camaro) Mar 22, 2020: removing right front spark plug on 1995z28 camaro: 4th Gen Camaro LT1 (1993-1997 Camaro) Feb 22, 2020. Fuel pump is working, it's got spark, but no injector pulse. I really appreciate the thought and insight you have given to this problem. Replaced ignition because I knew the wires in it were bad and is fine now. I do have fuel pressure. My search still continues. I've had the same problem for a while now. This tester fires individual injectors in 1/2-second increments in three different ranges which are 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds, 100 pulses of 5 milliseconds. I'm just wondering if anybody has encountered this. i replced ecm with remanufacter unit same thing. Since this is where the spark and ignition of fuel that drives the engine, the injectors are subject to a pretty harsh environment. It started acting up while driving it, seemed like the engine would totally cut out, rpm gauge would. getting spark, getting fuel to the fuel rail, have reset my ecu. New fuel filter pump and relay. What else could be causing my injectors to not fire?. On an E30 (3-series), the module is located next to the ABS control module (on 86 and later models, with ABS) to the left of the steering column, under the dash. tried new ecm, no luck grounded the ecm directly to the battery thinking it was voltage drop. No Start No injector pulse (shorted injector) part 1 - Duration: 14:42. Injectors have 12v to yell/blk wire but no negative pulse from ecm. I changed the pip (pick up coil) had the ignition control module checked @2 different places and both said it was good. Double check your timing belt installation to make sure it is properly timed. After relearning key it started and ran fine. Beretta, Corsica, & pre-1995 Lumina - 92 chevy lumina euro has spark no injector pulse - Was called today to look at a car that wont start its a 92 chevy lumina euro with the 3. no spark no injector pulse please help!!! If this is your first visit, be sure to check out the FAQ by clicking the link above. pickup coil. Next see if the engine will start in neutral as a faulty trans switch can cause this. i do have power to the injectors but no ground pulse i checked all the fuses and fusible links and all seem. have the same problem? Wednesday, January 25th, 2012 AT 7:32 AM. installed my new motor today and have no pulse. I believe the Ecu is not getting the signal to ground each injector. If the spark is clean and matching engine rpm but the injectors are not then check the signal from the Throttle Position Sensor (TPS). no spark and no pulse to injectors maintenance & nonperformance. Just got the motor in and ready to fire but it has no spark or injector pulse. Plenty of spark under crank position. No injector pulse?! Please help! JordanHoudek: Factory 2. Thing's I have checked. 9 Gas; when it was delivered to me it ran but needed an intake gasket let is sit for a while and now it won't start, no injector pulse, no spark verified the computer was good (swapped it into a different truck) moved on to the cam position sensor. It is a VU with an L67 fitted. 3 no spark or injector pulse \015 I have no rpm input on scan tool. 75 volts to trigger the TFI module. 4 No star ,No injector pulse,good spark using your pull down by pass test, as Dora the Explorer says, I couldn. Wires from injectors to ecm are good. Now on the way home, the first time in a long time, the car had no problems reving over 5K. I am trying to do the first start on the car 302 with a Mass Flo. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. We have just finished rebuilding both engines and reinstalled in the boat, Now we seem to have no injector pulse on eather engine. TYSON Member. The shop found the ignition key body was broken and NATS (Nissan Anti-Theft System) immobilizer codes P1610 and P1614. There is battery voltage at both terminals at each of the red and blue wires on each injector to earth and the noid light shows nothing when cranking. When the engine is turning over, the light will pulse. Benefits include smoother idle, 1. So is the ecm bad or the crank sensors bad. This is the plan. wire that goes to ecm to ground injectors was checked. - the ECU is not getting the correct information from sensors. 0 Mustang Forums (1979 – 1995) > 5. I had the Crannk angle sensor and the Cam position sensor mixed up. Also pulled a plug and no fuel on it however I do have fuel pressure. So, the engine has been sitting in the car for that period of time without running. _____ 2006 Chevy Monte Carlo SS. if have spark trouble shoot injection. You need to get a 12v tester and test for 12v signal at each injector clip (with the key in RUN). I will post an update next week guys. With this video I want say thanks to you PAUL DANNER I fixed this chevy venture 02 3. But those damned fuel injectors just won't open on their own. i replced ecm with remanufacter unit same thing. Since this is where the spark and ignition of fuel that drives the engine, the injectors are subject to a pretty harsh environment. I have an 04 wrx that I bought as a project. Just got the motor in and ready to fire but it has no spark or injector pulse. It has been a month and a half now and I have gotten no where. That will cost you a lot of wasted money. 0L Turbo Powertrain (EJ Series Factory 2. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm. Start the car. When you first turn the vehicle on the spark plugs sends a single spark, So it must be connected properly. buttoned up the engine crank it over and I'm not getting an injector pulse noid light will blink when i first put the key to the Acc position. Testing for Spark can very easily and safely be done with a dedicated spark tester. ZippuDoozy · Registered. We are getting an intermittent pulse on injector and coils. Typical No Spark, No fuel thread here. No spark and no injector pulse. By having full spark from the coil and full spark at the plug wires coupled with 12 volts on either side of the coil and to the TFI run and start wire, I think the spark side of the equation is fine. Bagged083500 · Registered. Replaced crank positioning sensor and computer. 2 No spark, injector pulse won't run. If you want a guaranteed non-immobilizer ECM, use a 4-plug 1997 ECM or have the immobilizer EEPROM chip erased in yours. Vag com hooks up fine, I can energize the injectors and i register a tach signal in vagcom. I'd go with the crank position sensor 1st. I'm just wondering if anybody has encountered this. The last time I had to fix this some doh head had wired his amp to the same ground. We've got power at the fuel rail and the coil. 0L Turbo) 9: 11-22-2009 02:04 AM: No spark, No fuel injector pulse. Is the CPS the only cause for this? Last week i went to start it and this was the problem. i took my car to the shop, they test it for me. They said it was a computer issue. I finally just checked the pulse to it today using a noid light and nothing is there. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. the car ran with the stock motor so it has to be something i did during the swap. please I need help. No Start No injector pulse (shorted injector) part 1 - Duration: 14:42. All grounds check OK. also whats your Voltage while cranking over? ive seen the Haltechs have that issue when voltage is low. This website uses cookies for reasons of functionality, comfort, and statistics. There is no fuel pressure sensor that I recall on an 1150. I have fuel pressure, but no spark or pulse. I had it back for three days then this morning went to leave and it wasn't starting. I'm hoping it's crank sensor related but wasn't sure. Discussion Starter • #1 • Aug 13, 2013. Checked all grounds and they also look good. This is an issue with a '95 LT1. We have narrowed it down to the fact that there is no injector pulse but cant seem to figure out the biggest question- WHY?!!?. 2002 nissan sentra 1. I switched injectors to stock and have 8 set of these injectors and no matter which injector I use, the #2 cylinder isnt getting fuel. 3, motor has a miss so I checked and cleaned all injectors, changed the coil packs and now still have a miss in the number 2 cylinder. 9 Gas; when it was delivered to me it ran but needed an intake gasket let is sit for a while and now it won't start, no injector pulse, no spark verified the computer was good (swapped it into a different truck) moved on to the cam position sensor. well i installed the 87 crank sensor along with caspers adapter and it still has the same issue now again. All wiring seems good to go. All fuses are good. Finally tried checking the injectors with a noid light and voila NOTHING. There is a sensor that tells the Computer if the throttle is open or not if its dirty it can. 8 runs great but will shut off like u turned of key , then spin with no injector pulse or spark. 2l standard trans. -Engine Turns and Fires(got spark) but no injection pulse -There is power on DME pins 27 when key turned , constant power to pin 18 when off and power on pin. hey i bought a vs v6 with a blown motor to turn into a dirt circuit car, i stripped all interior bar dash and gauges, removed all lights, swapped motor over and it now wont fire, got spark, got fuel pressure but has no injector pulse but the injectors do pulse when earthed with a test light, would this be the crank angle sensor or is it more likely to be the factory immobiliser, all central. The PIP signal level needs to be above 6. It's a late model 302 Windsor, running a Edelbrock Air-Gap intake manifold. I hooked a stethoscope to the injector #2 and it has no pulse. Great thanks. 3, motor has a miss so I checked and cleaned all injectors, changed the coil packs and now still have a miss in the number 2 cylinder. Just got the motor in and ready to fire but it has no spark or injector pulse. I changed the pip (pick up coil) had the ignition control module checked @2 different places and both said it was good. I have spark at the plug, fuel at the rail, injector pulse, no code from the OBD1, the Fuel Cutoff Light is on. Joined May 30 More than likely you have no spark reference, therefore no injector pulse. Has spark - Insure wire continuity between the ECM and the distributor or tach Filter. $88 - $111. Should be 12v. This is the No Spark No Fuel No Injector Pulse Helppppp!!!– Jeepforum of a photo I get from the 1998 Jeep Grand Cherokee Fuel Pump Relay package. I went through the wire job on the new module and found out he had the crank signal and ground wires backwards. The car has a new crank sensor recently installed ran well for a while and now has no injector pulse. Battery voltage to coil and igniter. Fuel pressure normal. changed CPS, computer, injector pulse controller in the distributor, checked fuses, relays, fuel pump pressure, spark at all cylinders. any saab gurues out their. One of the guys that i meet, he told me that might be a distributor problem. I have spark ,i have fuel pressure I have power to injectors but no pulsecould it be a fues causing this?? Joeyxxx , May 10, 2020 at 1:25 PM. if power is being supplied to both injectors and coils. thought it would be ECM but replaced with another ECM from working truck and still not pulsing when trying to start. We were able to get a injector pulse and spark one time but have. My friend has my hp tuners, so I won't be able to scan it until tomorrow. The apparatus includes a plasma ar. 2nd Gen Ram Tech - no injector pulse - ok, i have about had it with this truck and its issues since i bought it. Battery voltage to coil and igniter. 3 no spark or injector pulse \015 I have no rpm input on scan tool. The engine is an L67 rebuilt from the ground up, but originally came from a 98 Buick Park Avenue Ultra. There is battery voltage at both terminals at each of the red and blue wires on each injector to earth and the noid light shows nothing when cranking. Here is a partial list of the cars that used this style fuel injector. 0L Turbo) 2: 10-31-2010 03:13 PM: EJ20G Motor no fuel no injector pulse. 2002 nissan sentra 1. So, an injector can be plumbed up on a test stand with test fluid, and the injector exercised for a specific number of pulses/widths. 1997 E320 no fuel injector pulse after front end collision. Fuel pump is providing good pressure. Any ideas on what to try next? Im lost! Thanks in advance. 8t coil conversion. It has the E4od. (Engine would not start with starting fluid and no spark arcing from high tension coil lead to ground across a gap of approx 3 mm. The engine studders and has terrible rough idle at like 550rpm. I have tried a different ECU with no luck. 2004 Dodge Grand Caravan SE 3. Shebuilt · Registered. Bimmerforums is the preferred online BMW Forum and community for BMW owners. WHAT things make the DME ouput an injector pulse, or maybe, more accurately, what things will KEEP a DME from ouputting an injector pulse. thanks guys. 1987 - 1996 F150 & Larger F-Series Trucks - 1995 F150. no codes set. Checked injector resistance (all 4 about 11. If they are good, you will need a pinout of the PCM so you. 12vdc is always applied to the injectors but when you average the applied voltage over a set time span, shorter pulses result in lower average voltage (leaner A/Fs) over that time. I due have spark though and fuel pressure also I can make it run on carb clean spray and also the other. I replaced it. Also checked the fuel rail. There is no fuel output while cranking. We've got power at the fuel rail and the coil. If the pick-up coil is the problem, you might be better off replacing the distributor. I pulled a spark plug and confirmed there's no spark. The ECU cannot pulse the injector without an Ne signal and will not start or run if this signal is not present. We were able to get a injector pulse and spark one time but have. i am running aem ems and i already calibrated it and has a base map on it. Main Power and Ground go straight to the battery. Discussion Starter • #1 • Jun 6, 2012. OZ38 Posts: 262 Joined: Wed Jul 01, 2009 9:18 am Location: Jurien Bay, W. $88 - $111. Hi guys I have a ve ss and have no injector pulse. I'm beginning to think that it's a ground issue since all the wires in question have continuity and the injectors have the correct switched 12v. It had a bad Bosch relay by the ECU and I replaced it with a new one from Centerline, now the pump runs as it should. By pal on Unrecorded Date: My 86 GTV-6 has voltage into the coil, but no spark and no pulse to the fuel injectors. Top 1991 olds 98 no injector pulse Help! Posted: Thu Dec 09, 2010. Alfa Romeo GTV6 Forum: Fuel, Electrical & ignition: Need Checklist. Jump to Latest Follow 1 - 8 of 8 Posts I assume you tested the injectors visually and noticed no fuel being sprayed from either one. Having spark would indicate a ECM system problem. But we've got no spark and no fuel on the spark plugs. Discussion Starter. the car ran with the stock motor so it has to be something i did during the swap. no-start, constant injector pulse, no fuel pump, high CO level Model 924S, 944 (Motronic 2nd) - 0 261 200 XXX intermittent running, excessive fuel mixture, starts and dies Model 944 DME - 0 261 200 XXX intermittent running, no ignition spark Model 944S, 964 (Motronic 4th) - 0 261 200 XXX. New signal wiring was run to each coil from ecu as it was previously setup for wasted spark. Jump to Latest Follow 1 - 4 of 4 Posts. 7 TBI no spark no injector pulse. Im trying to get my car running. you may be getting pressure but no volume from the fuel pumpsounds weird but they are 2 different things. 0L Turbo Powertrain (EJ Series Factory 2. help 84 gn no spark injector pulse. But we've got no spark and no fuel on the spark plugs. btw its a 96 vr gti ant help is greatly appreciated. Just got the motor in and ready to fire but it has no spark or injector pulse. Fuel pump is working. You can use a noid light to see if your getting a pulse. The PCM has a few ground points near it, some are circuit specific, I would think the injectors would be, so make sure all the grounds near the PCM are clean and tight. had the DME rebuilt bu ecu doctors , still no start. … read more. no injector pulse. As to why injectors don't pulse, there are a few possibilities. 6 ohms) Checked wiring continuity from injectors to ecm ok (cyl 1-4 joined & cyl 2-3 joined). First, boost leak that made me keep hitting my MAF cut when i would go WOT. They said it was a computer issue. I have a 2006 Mitsubishi Eclipse GS 5 spd. i purchased the car and had heads rebuilt installed with new gaskets and all surfaces machined. the part that fired the spark plugs was working just fine, but the part that fired the injectors was all rusted and falling apart. The spark is fine, i'm getting a good RPM signal, there's power at the injectors and the injectors are enabled. Assuming the battery is charged, the car has compression, the fuel pressure is adequate, and THE CHECK ENGINE LITE IS ON: If you have: 1. I didn't want to bore you with the entire series of events so I left out what I felt wasn't needed to say. Check for spark as well. If fuel is still not spraying go to fuel system troubleshooting before. no injector pulse. Plenty of spark under crank position. I checked with noyd light. As far as the ECU i installed a used ECU exact same P/N from a junk yard locally (50% off electronic parts on Fridays, paid 16 bucks for it no start no injector pulse), i have good fuel pressure all the way up to the rail ( 37psig i think is what the haynes manual calls for i cant remember). well i installed the 87 crank sensor along with caspers adapter and it still has the same issue now again. No blown fuses. But those damned fuel injectors just won't open on their own. no codes set. it cranks ok, there is no injector pulse or spark. Jump to Latest Follow 1 - 2 of 2 Posts. It has spark but no injector pulse, it's getting voltage to the injector connector but the PCM is not grounding the injector for the pulse. Re:Crank, spark, fuel pressure - But no Injector Pulse? 2011/08/31 20:43:16 0 Yeah CSI wasn't operational previously I believe (remembering back I think the ECU didn't have it - which I thought was wierd at the time as I thought only GenIIIs didn't have them but anyway it wasn't an issue for like 12 months) It never became an issue either. Start the car. Bimmerforums is the preferred online BMW Forum and community for BMW owners. No Injector pulse. I really appreciate the thought and insight you have given to this problem. it cranks ok, there is no injector pulse or spark. With Key on, check for 12V+ at ECU white connector pin # 22 & 23. The car cranks fine, but there is no spark and it seems as though the injectors aren't spraying either. Start the car. I bought some stuff from Casper's to test the sensors today. Now just to get you guys up to speed so I'm not answering a heap of question lol I don't have a DDT,love to get one but nothing. no codes set. Checked all 4 injectors with DVOM, threshold I believe is 13. 0 - Specific' started by SN95. Mass Flo No spark or injector pulse. have you tried with a NOID. I do have fuel pressure. No - Remove one of the injector connectors from an injector. Joined Nov 23, 2010 · 40 Posts. Checked basics: had fuel, fuel pump runs and has good pressure & good spark but no injector pulse. im using a non turbo dist msd btm and msd coil, the btm is run of a magnetic pkup. ZippuDoozy · Registered. I'd go with the crank position sensor 1st. There is no power going to the Crank pos sensor and Cam Pos sensor. 4 3v) the truck will crank but wont spark! I've narrowed it down to having potentially weak spark and no injector pulse. So I went in and tested the pins directly at the ecu by probing The injector output pins 51,52,60, and 61. When you turn the key, the injectors do not pulse. I will post an update next week guys. Theres no spark or injector pulse. 2006 Nissan Maxima SL 3. I didn't check for pulse on injectors but assumed they were not operating because i did have fuel pressure available. The car will start on starter fluid fine so I had ruled out the timing. i am running out of patience with this car, i have spark, i have fuel at the rail, cranks and cranks but still won't start. If worse gets to worse, may send it to Dealer and let them figure out if ECU is bad. I had it back for three days then this morning went to leave and it wasn't starting. net My 1999 5. I replaced the crank sensor {yucky job} but no difference. I have an 04 wrx that I bought as a project. The ECU cannot pulse the injector without an Ne signal and will not start or run if this signal is not present. I do get an RPM signal on crank of about 200-250 but there is no injector pulse or spark. I have a 1990 Eagle Talon Tsi having issues with injectors. No spark means no pulse. Fuel pressure good. The truck will almost start with. A short in the dash powerside wiring (the small orange/black wire) caused a no start problem The dash light wiring has been repaired Symptoms: No spark from coil No injector pulse Fuel pump primes but not running during cranking Intermittent Voltage gauge operation Tachometer not working Diagnostics:. If you pray ether into the engine IT WILL run. I use some diy method to test it. 3 no spark or injector pulse \015 I have no rpm input on scan tool. This allows full voltage to the injectors throughout the pulse width. All grounds check OK. Still nothing. The fuel injector can be compared to the heartthe injector does the pumping. now i had a look at another one of my vehicles which has l76 6. i find out, the fuel injector didnt spark any fuel at all. That was a month ago. Rewq246 · Registered. It will have to be relearened at a dealership. Module is in good. So, low compression or an ignition problem should be eliminated before looking for a possible clogged fuel injector. The owner switched the ignition module over to tbe 86-87 module. no spark or injector pulse. STravis · Registered. Jump to Latest Follow 1 - 8 of 8 Posts I assume you tested the injectors visually and noticed no fuel being sprayed from either one. And all wires are hooked up. I guess no one readsinjector pulse comes from ecm. Car was shutoff normally and now won't start. You may have to remove the spark plugs to let them. 0l gen 4, with the engine not running the map sensor reads 102kpa, during cranking you can see is decreasing as the engine starts to pull a vacuum. No Spark/Injector Pulse. 1987 gn, has no spark and i only have 5. Please help! Every possible part I could test passed just wondering if it is an ECM problem? SPONSORED LINKS. please l have Nissan almera 1. The last time I had to fix this some doh head had wired his amp to the same ground. I'm worried that I'm running into a VATS issue. i just got my motor in and it wont start the motor is a k20a2 and the car is a 1994 integra. No pulse/power at switch on or during trying to turn it over. 2002-01-01. IPW - Injector Pulse Width. When you turn the key, the injectors do not pulse. Spark, compression, fuel - no injectors pulse. The car cranks fine, but there is no spark and it seems as though the injectors aren't spraying either. If you have spark, just no injector pulse, make sure you have power to injector. We have bypassed the VATS. I had the Crannk angle sensor and the Cam position sensor mixed up. 5L No Start No Spark No Injector Pulse Posted to Asian Electrical on 11/11/2014 5 Replies hello gents-- long time reader and one of my 1st real questions that i pose to you the readers. Spark is good. I have a cam code even after swapping with a good sensor, I have not compleatly tested the ground wire going to the PCM but I was thinking maby the cAmshaft sprocket is different due to the crank sprocket. 0's where the ECM's are not that common. No Injector pulse. still engine. 7, I have good fuel pressure and good spark but I am only getting 0. This tells the ECM how fast the engine is turning. All Bosch fuel injectors released to the aftermarket are OE fit, form and function, and are produced to OE specifications. Hi guys I have a ve ss and have no injector pulse. i purchased the car and had heads rebuilt installed with new gaskets and all surfaces machined. No big surprise there. With this video I want say thanks to you PAUL DANNER I fixed this chevy venture 02 3. cranking I get zero flashes had a spare set of cam and crank sensors, tried them, same problem. This website uses cookies for reasons of functionality, comfort, and statistics. I am working on a 2005 Eclipse GS (4cyl) (July 2004 production date) and we installed an Evo turbo setup, WRX injectors, Walbro 255, etc. I have good spark from the coil wire and the #1 plug. Pulled the rear plug to see if it was wet from fuel. We've got power at the fuel rail and the coil.