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

Name the missing parts

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Old Sep 15, 2010 | 01:10 PM
  #1  
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Default Name the missing parts



This is a picture of the wiring in my son's 1989 Corvette. This is looking straight down directly over the battery. In the lower left is the brake booster. In the upper right is the driver's side hood latch.

The PO hacked the wiring harness for whatever reason. Near the middle of the picture there is a blue butt-connect crimp There are 4 wires here - 2 heavy gauge black wires (connected with the crimp) and two lighter gauge wires (one yellow and one orange). I assume these originally went to a relay.

Just to the right of the crimp you can see three wires that are cut off almost flush with the harness wrap. All are fairly light gauge. One is green, the other two are violet.

Does anybody know what these wires are? I have been through the factory shop manual, but it is hard to find anything in there unless you already know what sub-system it belongs to.
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Old Sep 15, 2010 | 02:49 PM
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There are two relays behind the battery and one just ahead of it on the lower inner fender.

Not sure what they are for because I don't have a manual.

Kinda looks like mine...


Last edited by Keystring; Sep 15, 2010 at 02:55 PM.
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Old Sep 15, 2010 | 04:35 PM
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The MAF Burnoff Heater Relay and the MAF Power Relay, directly behind the battery, are both there and their wiring is untouched.
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Old Sep 15, 2010 | 04:45 PM
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I wonder if any of that harness is factory because the clip with the phillips head screw near the booster should not be there.
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Old Sep 16, 2010 | 09:18 AM
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I think it is the factory harness. The clip and screw may have been added by the PO. That harness continues down behind the battery and goes to the MAF relays and other stuff behind the battery.
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