Hey all. So I found this wire/harness on the ground under my truck a while ago and I was wondering if anyone knew where it went. Any help would be greatly helpful. I would imagine it had the same plug on the bare side as it does on the side with the plug. I kinda looks important with the sleeve and all. Also the wire is yellow/black. Its a 1988 22re. Thanks guys!!

 

that is the extention peice of wire, to the lower sensor on the right side of engine block its the sensor that is below the oil filter. the sensor to the left of the oil filter is the engine knock sensor dont brake that sensor or you will be paying about 160.00 for NEW ONE like i did. like i said that peice of wire is a extension peice of wire for the sensor just below oil filter which shold be oil pressure switch.. if iam right but anyways thats were that wire go's .. i know that for a fact cuz i took pic's of my truck before i pulled the engine and i bagged and tagged everything.. when i dropped the new engine in the truck all i had to do was tighten up the fuel line bango bolt thats was leaking other than that truck started on its first try.. good deal for a engine for $250.00

 

Oh haha that makes sense then. Cause when I put the engine back in the truck I couldnt for the life of me get the plug on the Oil Pressure switch so I just extended it. Which is what this is for. haha Oh well atleast its fine now. Thanks 1990yota-pickup!