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

EFI Connection

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Old Apr 4, 2015 | 09:05 PM
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Default EFI Connection

Wondering if anyone here has used the EFI Connection upgrade kit on a pre 96 C4?
I did a search on here but didn't come up with anything. Have contacted EFI Connection to see if they have a plug and play harness for the Corvette. Was told that they do not and don't have support for the Corvette.
Was wondering if anyone has gone to the trouble and figured out the changes in the ECM pin outs to make the LS computer work in our C4s?

Any information would be greatly appreciated

Thank in advance.
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Old Apr 5, 2015 | 07:56 PM
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They used to have a PCM pinout you could download, but it looks like they removed them. I'm not sure if the 94-96 C4 pins would be the same, but it may be helpful.

Luckily I still have them. Here they are.

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Old Apr 6, 2015 | 05:19 PM
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Thank you very much. The information is greatly appreciated
Should at least get me started.



Laszlo
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