No Spark issue!!

[SupremeDsm]

Ok guys so im kind of stumped on this one! Im not getting any spark coming out of my coil packs. I check the ecu and its fine. I also replaced the coil packs, camshaft angle sensor, crankshaft position sensor, battery, spark plugs, spark plug wires, and power transistor. Im not sure what to check now. Any ideas? And yes I did search!

 

[Maverick4g63]

How did you confirm that your ecu is operating correctly? Have you double checked all of your grounds?

 

[SupremeDsm]

Grounds are good. And I just opened it up to check and see if any of the caps are leaking. Im going to be putting a new one on it here shortly. Yes we double checked all of the grounds.

 

[Maverick4g63]

I used an led test light to watch the ignition coil control pulses at the ecu harness. For some reason my phone won't allow me to view this file, but i believe it shows the ecu pinout with the ignition coil a and b.

[ATTACH=full]469642[/ATTACH]

 

[Lou98GSX]

did you check all your fuses

 

[SupremeDsm]

Fuses are all good. Also changed out ecu's and still no spark. Im about to go crazy.

 

[strokin4dr]

You really should test each component separately instead of just throwing other parts on the car. You now have too many variables changed to easily diagnose the problem.

 

[SupremeDsm]

Yes all fuses have been checked along with the grounds.

 

[Maverick4g63]

Have you checked for signal leaving pins 10 and 24 on the harness while running?

 

[SupremeDsm]

Have you checked for signal leaving pins 10 and 24 on the harness while running?

Im not getting any spark let alone it running! Lol. I changed each sensor individually and still got nothing. I didnt just go slapping new parts on.

 

[BurrowZ]

... do you have the correct plug going in to your coil pack?

 

[Lou98GSX]

turn the key on and check if your sensors have a 5v supply . if they don't then go back to the ecu and check all your powers and grounds.

 

[SupremeDsm]

Yes the plug is correct in the coil pack. I will go out and test the sensors and see if they are getting a 5v supply.

 

[BurrowZ]

Coolant temp sensor?

edit: NEVERMIND HAHA.. forgot the problem was no spark.

 

[chadjoe]

make sure your crank shaft trigger plate is clean and not all bent up. It can dig into the crank sensor and tear it up almost immediately. I had a timing tensioner lose tension and the belt slipped and bent the trigger plate. I couldnt get it to spark and it ended up being that trigger plate.

 

[Maverick4g63]

Im not getting any spark let alone it running! Lol. I changed each sensor individually and still got nothing. I didnt just go slapping new parts on.

Sorry about that. I've been flipping back and forth between threads. The ecu will send a pulse to the transistor while its turning over. Have someone turn the key while you probe the harness. Once you know if the ecu is trying to trigger your ignition you can continue to follow the troubleshooting path.