Oil pressure sending unit question
#1
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I just installed the autometer oil pressure sending unit,but now i'm not sure which wire goes to the sending unit.The sender for the light that i pulled out had 2 prongs,the new sender only takes one wire,and the plug has 3 wires.Here is a picture of the plug,anybody know which of these wires i need to use,it's in my 80.This is the only thing keeping me from finishing the gauge swap,so hopefully someone can help me out here.
![](http://i297.photobucket.com/albums/mm238/mullins6959/IMAG0079.jpg)
#4
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Yeah,this is the electric version.I may end up just running a new one,but i'm thinking with 3 wires,they are prabably a power wire,a ground,and the sending wire so i'm going to try and figure them out here in a while.This is all thats keeping me from finishing the gauge install,so one way or the other i'll get it done today haha.
#6
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Looks like he's trying to tap into his existing wiring, both under the hood and the corresponding wire(s) under the dash. He'd need a factory wiring diagram specific to his car for that, if he can't figure it out. I'd just run a new wire myself, and abandon the factory wires.
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