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

Need wiring harness help

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Old Nov 5, 2004 | 12:09 PM
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Default Need wiring harness help

I have aquired a '90 project car. It convertible with an automatic trans. It had and interior fire confined mainly to the radio area of the console. I could rebuild the interior wiring harness but it would be easier to just replace it with a used one.

What I need to know is I found a complete dash frame with wiring harness on ebay for a '90 model, but it is out of a 6-speed car. According to the local Chevy dealer the part #'s are different. Can anyone tell me what the difference is? Thanks.
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Old Nov 5, 2004 | 12:47 PM
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I would think the difference would be in lighting for the automatic quadrant display... other than that? I donno.

Unless this includes harnessing to and from the ECM and CCM. But I thought all of that was handled by the serial bus.

hm...
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Old Nov 5, 2004 | 02:48 PM
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Plus, maybe the neutral safety switch, TCC? My guess is that if the eBay harness is a bargain, you can make the adaption with the aid of the Helms wiring diagram.

RACE ON!!!
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Old Nov 5, 2004 | 05:36 PM
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I am waiting to hear back from the guy about shipping charges. If its not to much I'm gonna chance it, I need the dash frame anyway.

Now to find a Helms manual cheap, anybody got one for a '90?
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