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

91 L98 Ecm

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Old Mar 3, 2006 | 06:29 PM
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Default 91 L98 Ecm

I am needing to find a new ECM for my car... It appears mines is faulty. i keep getting different awnsers, and need to know which one is right.... Does it matter if the old ECM came off of an auto or a manual transmission car? The service numbers on my ECM is: 16198260

thanks in advance!
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Old Mar 3, 2006 | 06:44 PM
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I don't know if it matters for sure, but I think it does. O'rielly auto parts has these remanufactured for ~$75. If you don't have one in your area you can order from them online. Take your old one and there is a number on it, match it with the number on the Orielly computer, because they show like 3 of them when you input your make/model/year, all with different numbers for different applications.
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Old Mar 3, 2006 | 06:50 PM
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Originally Posted by DavesC4
I am needing to find a new ECM for my car... It appears mines is faulty. i keep getting different awnsers, and need to know which one is right.... Does it matter if the old ECM came off of an auto or a manual transmission car? The service numbers on my ECM is: 16198260

thanks in advance!
The ECM itself is the same. The chip is a different part number though. I spoke with an ECM service / remanufacturing house once ... They told me that well over half of the returned "bad" ECMs were actually just bad chips or calpaks.
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Old Mar 4, 2006 | 10:05 AM
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ok thanks for the info.... Is there anyway to visibly look at the prom and indentify if its damaged?
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Old Mar 4, 2006 | 11:24 AM
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No there isnt.

What is the problem you are having?

The ECM is almost always the last answer to a SES code or running problem.
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Old Mar 4, 2006 | 12:55 PM
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Originally Posted by vader86
No there isnt.

What is the problem you are having?

The ECM is almost always the last answer to a SES code or running problem.
the problems im having: http://forums.corvetteforum.com/show...72&forum_id=48
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