From what I have investigated regarding the ICM, I have not found a 100% positive test to prove the ICM is bad, other than to swap out the unit for a known working one.
Ive Experienced the ICM...
Type: Posts; User: Naturally_Aspirated_Boost
From what I have investigated regarding the ICM, I have not found a 100% positive test to prove the ICM is bad, other than to swap out the unit for a known working one.
Ive Experienced the ICM...
swap the ECM or flash the ECM from the park avenue with the file from the Fbody.
Still failure?
Swap the ICM with a junk yard ICM, Replace with new ICM if found faulty. Use AcDelco's ICM....
The ICM often takes a dump at the most in opportune times;
Have you swapped the Ignition Control Module? If not, a local junkyard should have one for fairly cheap, My vehicle had refused to start...
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