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

1992 C4 Engine Missing, ASR, SYS - Codes / Input?

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Old Jul 28, 2013 | 07:53 PM
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Rossi396
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Default Help! 1992 C4 Engine Missing, ASR, SYS - Codes / Input?

Guys:

My neighbor has a 1992 Vert and he has a "Service ASR" light, "Check Engine" light, Flashing "SYS" light and a terrible miss. Car won't run smoothly and seems to red line at around 3,000 RPM. I did some research here before posting and most outcomes look like a computer. Battery is new (just replaced today) and here is the code list:

Module 1 - C41
Module 1 - H41
Module 4 - "Err"
Module 9 - H65
Module 9 - H72

Can someone point me to some troubleshooting steps? It would be much appreciated. I read two pages of "Service ASR" posts and I'm thoroughly confused. Also, is this the EBCM computer that usually is the problem? Who on the forum can rebuild them?

Thanks in advance for your help!

Rossi

Last edited by Rossi396; Jul 29, 2013 at 10:02 AM.
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Old Jul 29, 2013 | 08:55 AM
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Old Dec 9, 2013 | 04:08 PM
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Originally Posted by Rossi396
Module 4 - "Err"
I would suspect the ECM is bad if it is not being recognized. It happened to me once. Did you get this figured out?

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