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02-16-2018
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#1 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Engine Harness Variations
Considering purchase of extra engine harness. This is from a 90. Does anyone have knowledge of any significant deviations of harness build from one year to the next? If so, could you provide detail or where that can be found?
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02-16-2018
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#2 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,161
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Re: Engine Harness Variations
See attached.. I have info 90-93 but I assume 94-95 are the same as 1993
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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02-16-2018
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#3 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Engine Harness Variations
Quote:
Thx Jeff. |
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02-16-2018
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#4 |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,843
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Re: Engine Harness Variations
Seems to me I read somewhere the harnesses on the very early 90’s was different from the later 90’s. I believe it was only the first few hundred cars.
H 
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02-16-2018
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#5 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Engine Harness Variations
Hans,
The differences can’t be dramatic given the fact that any ECM can be used in any year ZR. |
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02-16-2018
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#6 |
 Join Date: Dec 2003
Posts: 482
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Re: Engine Harness Variations
There should be a tag at one end of the harness. It will have the last few digits of the part number, George.
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02-16-2018
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#7 |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,161
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Re: Engine Harness Variations
For what you are looking to do it won’t matter
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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02-16-2018
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#8 |
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Join Date: Aug 2005
Location: Fishers, IN
Posts: 813
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Re: Engine Harness Variations
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02-16-2018
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#9 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Engine Harness Variations
Todd,
I have an opportunity to pick up an engine harness for my car but from a different MY. Just want to check on compatability before purchasing. |
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02-17-2018
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#10 |
 Join Date: Oct 2004
Posts: 1,884
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Re: Engine Harness Variations
In MY '90 there would have been 2 harnesses, 1 for C60 and the other for C68. A tag near the connector for C100 for C60 would be 0375 likely and C68 0376. There's an obvious visible difference where the C68 would plug into the Blower Control Module or the C60 just a conventional Blower Resistor.
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