I've got an 86 4x4, I can't find the terminal, I've searched and it says under the dash, I don't see anything that looks like the drawings, I know how to do everything else afterward, but can someone tell me a more specific location? Thanks!

 

Does this help?
http://www.4crawler.com/4x4/CheapTri...CheckConnector
[in the engine compartment, not under the dash]

 

Yes it does, I wasn't even close lol, knock sensor signal, well that's what I'm guessing since the other code 12 was rpm signal, and mines an automatic, thanks much!

 

Never mind, after a bit more investigation, I realized that among giving wrong location, the codes are wrong too, I feel better now after looking at the price of a knock sensor