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Mitsumark · 10-29-2013

No..I haven't pulled the plenum..The plenum hasn't been removed since early 2012..I did however replace parts as stated above in the area behind the plenum.I did so trying to fix my running issues..However it didnt help and thats when I noticed the weak spark.NO CHECK ENGiNE LIGHT no matter how bad it runs..You said the ICM are not being produced anymore..Can I troubleshoot my current one? Also,how can I find out if my problem is the PCM or the ICM?..As you know,it's not like owning an LT1 where I can go to a local yard and pick em up and swap them out easily.Sorry for the questions.. I ordered a FSM but it won't be here until next week..

10-29-2013	#5
Mitsumark Join Date: Aug 2013 Location: NJ Posts: 117	Re: Ignition Control Modual No..I haven't pulled the plenum..The plenum hasn't been removed since early 2012..I did however replace parts as stated above in the area behind the plenum.I did so trying to fix my running issues..However it didnt help and thats when I noticed the weak spark.NO CHECK ENGiNE LIGHT no matter how bad it runs..You said the ICM are not being produced anymore..Can I troubleshoot my current one? Also,how can I find out if my problem is the PCM or the ICM?..As you know,it's not like owning an LT1 where I can go to a local yard and pick em up and swap them out easily.Sorry for the questions.. I ordered a FSM but it won't be here until next week.. Last edited by Mitsumark; 10-29-2013 at 11:19 AM.