C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Best ICM

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Old May 8, 2012 | 10:29 AM
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From: Troy Al
Default Best ICM

I see a lot of different brands at different prices. Whats the best ignition control module to get for my "93 coupe? I want one that will hang for a while, as these seem to be a problem with these cars. What have you had good luck (or bad) with a particular brand of ICM?
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Old May 8, 2012 | 11:18 AM
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well - first you need to make sure it is your problem.
I thought mine was eating them - turned out it was the cable connection on the passenger side intake. The connection between the opti and ECM.

Make sure you ALWAYS use heatsink/thermal compound between the ICM and the heat sink.

Other then that I haven't found any I would call excellent. O'Riely seems to work the longest so far
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Old May 8, 2012 | 07:15 PM
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To add to this. I got one a while back from Advanced Auto Parts it was a BWD brand ICM. I looked on the box label and the darn thing was made in the USA. I could not believe it!!! I never used it and took it back.
Might want to give it a try if you determine it is bad. I bet the AcDelco one is made in China. Go figure.
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Old May 8, 2012 | 07:30 PM
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Originally Posted by 93Rubie


To add to this. I got one a while back from Advanced Auto Parts it was a BWD brand ICM. I looked on the box label and the darn thing was made in the USA. I could not believe it!!! I never used it and took it back.
Might want to give it a try if you determine it is bad. I bet the AcDelco one is made in China. Go figure.
They were trying to pawn that American made crap on you, no wonder you took it back.......WW
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