Im almost ready to drop the 350 into my car for my swap. My car was originally an auto v6 efi car. I completely removed the v6 computer harness on the passenger side of the car, but now i realize i cannot find the connector for the oil pressure gauge sender unit. Does anyone have a diagram showing where under the dash the 2 wires are located? Im assuming the connector was apart of the computer harness, which is why i cannot find it. It was a two wire connector.

I looked through wiring diagrams for the engine and body wiring, but i couldn't find anything.

 

On any harness, the wires " under the dash" would go to the gauge cluster connector
and on the harness in the engine bay the OP gauge only uses 1 wire
A 2 wire unit on the engine harness is a switch (OPSU ) for the fuel pump backup

Later cars have a single 3 wire unit on the engine that combined the OP gauge ( 1 wire ) and the OPSU ( 2 wires ) in one unit

If you are reading your circuit diagrams correctly you will see the wires at the OPSU on the engine are org and tan /bk

 

Um, he's looking for the gauge wire, which is solid TAN and comes out of the connector by the brake booster. It should be in E5. It's one wire.

 

Thankyou, exactly what i was looking for. I just need help with one more, where are the wires for the coolant temp gauge? Are they part of that harness as well, or were they in the v6 engine harness? thanks.

 

Same connector, but in F5... Only one wire, and it's also a ground through the sending unit. Yes, these were in the engine harness.