i am adding my knock sensor now and i thought of an easier way to do it...could i take the wire and route it to one of the AC wires and then just re-locate the pin at the ecu to D3. for some reason to me it sounds like it will work. im not using ac right now so of course i know my ac would no lonnger work

 

you just taking out the pin that was for the ac, moving it to the knock pin rigjht?..

if so, yea that would work fine

 

alright, cool. oh does anyone have the obd1 p72 pinouts...i searched but nothing. or does anyone know off the top of their head what color/spot is one of the ac wires in that i could use

 

bump ttt

 

fwiw, the oem knock sensor wire is shieded. you might have problems using other harness wires to read the knock sensor