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

86 corvette wiring

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Old Sep 1, 2025 | 09:13 AM
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hudikoegel@gmail.com's Avatar
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Default 86 corvette wiring

Hey im finally going back to fuel injection in my 86 c4 but i chopped out the engine harness years ago and cant remember where a few wires go if anyone can help thatd be great

one wire is down near the oil filter coming out of the same loom as the grounds and the oil temp sensor. Its a one pin conector and i have no clue where it goes.pic below⬇️


and another question is at the back of the motor by the oil pressure switch behind the distributor theres 3 wires, one is the tachomer/rpm gauge wire and one is a big red wire, and theres one small green wire, mainly where does that big red comstant power wire and tachometer wire go from the harness? The distributor? Where?
thanks in advance!

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Old Sep 1, 2025 | 12:26 PM
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Last edited by IHBD; Sep 7, 2025 at 08:01 PM.
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