When i attempt to start my 1990 chevy Cheyenne pickup witch has a 350 V8 in it, the key ignition goes over and the check engine light comes on indicating that the ecm is good, however when i try to turn the key over, the starter is working, however there is absolutely no spark going from the distributor to the ignition coil, to the engine, i have had the distributor rebuilt, and everything in it mostly replaced, and the ignition coil replaced as well, including the module in the distributor replaced and checked as well, however there is still no spark, is the ECM bad, even though the check engine light comes on, because there is still no spark going to the engine.
I agree, the ECM
SOURCE: how to troubleshoot 1993 chevy Z71 pcm
Hi Nsilguero,
I apologize for the delay in responding.
From your description, I'm leaning toward a timing chain problem, first stretching, then skipping and finally breaking.
If you're getting voltage to the coil and still getting no spark, there is a test I'd like you to try.
Take off the distributor cap and have someone turn the engine over while you eyeball the rotor. Is it spinning?
This going to take some back and forth interaction. Comment me back with the results. We will proceed from there.
Mike
SOURCE: no spark but turns over replaced ignition module,coil,ecm
could be in the crank position sensor
just a thought shack
SOURCE: 1983 buick skyhawk 2.0 with TBI not sparying fuel
change the crank sensor.No the ECM has no internal oil components
SOURCE: I have a 1993 chevy
do you have spark from The coil if not check all grounds. 5 volt referance ciruits and tach signal from pick up in distributor to coil
SOURCE: 1992 ford econoline van wont
how can you say that you have power going to the coil and lot leaving it and still say its good?
kinda answered your own question there i think
just my opinion...
hope this helps
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