I recently put in a new 12a, and I took extensive pictures before the swap, but the few I have of these wires are not good. There are 4 wires coming out of the harness that used to run down the drivers side of the engine. I'm assuming that since my oil pressure and temp guages are not registering (and they used to before) they must be involved in the mix. None of them have connector ends on them anymore (broke off).

Read that the oil pressure sensor is below the MC, and the temp sensor looks like the end of a spark plug a bit forward of the oil sensor sticking out of the motor (I remember they were connected on the old motor.), I could test the connections by temporarily connecting them till I get a reading on the guages but I dont want to risk damaging the guages by incorrectly wiring it (if thats possible).

There are also 2 wire connections at the lower end of the motor out of the oil pan which are not connected. So it makes sense 4 wires 4 connections (with no connectors)... but I don't know which go where and dont know what they do. They are color coded. I looked at the diagrahms in the online FSM... but that confused the heck out of me (37 pages).

Does anyone know what color wires go into the oil pressure, temp sensor, and the other 2 sensors out of the oil pan (and what they do)?

BTW 85 GSL... and Thanks in advance

 

The 1st picture. the square connector wire is for the oil pressure sender, The one to the right with the yellow solid and intermittently spaced red bands is for the water temp. The 2nd pic is for the oil level sending unit in the oil pan. the last wire you have which i believe is mainly black is not hooked up on my 85 Se.

I know it's only used on certain models.

 

Thanks!!! Will hook it up tonight.

 

I would bet that the extra wire that rx7doctor didn't identify is for the sub-zero sensor.

Rich

 

You're prolly correct.

 

I guess I wont need that.... Especially with this Global warming and all...... Wow it's hot. Thanks once again guys.