Can you provide me with a schematic of the ign system. The customer stated the truck shut off several times and when he wiggled the wires at the left inner fender at the firewall it would start.
Don't have the tester needed in the procedure to test the stator. I replaced it with a new one. The first test on the module wa open (no reading) on the new ign. module and known good takeoff module. I replaced the coil with a known good takeoff. There is voltage to both terminals of the coil key on and in crankig mode. The distributor is turning! I turned the engine over to position the rotor for ease of reinstalling the distributor. Is there a way to check for spark from just the coil? There is fuel pressure at the rail.
Pulled the coil lead off the coil, turned the key on and cranked it over with a screw driver 1/4" away from the output and against ground. no spark!
If you sure you have good voltage to the coil then eaither the coil is bad or the module and or stator or the PCM has failed. There is no way to know whit doing the complete testing.
Voltage to coil both terminals is 12.2 key on and 11.2 in crank mode. Switched coil again. New module and stator.
What is the test procedure to test to see if the PCM is failed. Do I look for a signal to the ICM? I have a Snapon Modis but I don't think it can check the PCM.
cleared the PIP code and cranked the engine and re checked and code was gone. Also Modis said to pull the spout connector and check for spark and there was none. Code 14 PIP eratic could be wiring PCN to ICM.Still tracing wiring and continuity.
thats just it the codes were old. No new codes were set through this whole failure. The 14 didn't show again after cleared.
Ill get on it tomorrow again after I get som other work done.
Talked with the customer again and he said the truck quit several times and not just the spark but totally dead. I ordered an ignition switch. i have a feeling that is the issue. i'll let you know.