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Help identifying a wire on a 1972

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Old Dec 13, 2023 | 02:25 PM
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From: little rock Ark
Default Help identifying a wire on a 1972

So as some of you know I am L/S swapping a 72. When I started I marked all the wires, well I thought i did I need help identifying a wire. Its blue where it come out of the wire harness then into a quick connector then green and short with a owner installed spade end can someone look on there car and see where this wire is going... Thanks
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Old Dec 13, 2023 | 03:17 PM
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Dark blue is oil pressure sensor according to this drawing
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Old Dec 13, 2023 | 03:29 PM
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From: little rock Ark
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Originally Posted by bruiser

Dark blue is oil pressure sensor according to this drawing
Could it be a low psi light? because the car had a factory manual oil pressure gage
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Old Dec 13, 2023 | 06:41 PM
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Sounds like the passenger side TCS to sensor wiring. Would the green bit be long enough to reach the middle of the cylinder head just above the exhaust manifold?
Can you post another couple pics of the firewall and were the wires are located?




Last edited by barkingrats; Dec 13, 2023 at 06:48 PM.
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Old Dec 13, 2023 | 06:52 PM
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Originally Posted by bruiser

Dark blue is oil pressure sensor according to this drawing
That schematic is not for a '72 - the tach is mechanical; there is no low fuel warning light; nor is there any sort of printed circuit board in a '72!
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Old Dec 14, 2023 | 08:40 AM
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TCS wire and jumper would get my vote. It goes into a dual prong temp sensor in the passenger head.
https://www.corvettecentral.com/c3-6...harness-663167
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Old Dec 14, 2023 | 12:48 PM
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From: little rock Ark
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Thank you guys for the answer. I'm sure its the TCS wire. It was not used when the car came to me, so I guess i never marked it. All other wires are used and accounted for. Thank you all again.
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