ok well i think i know why my obd1 conv.. didnt work.. i noticed today i was getting code 20.. well i was going back over my wire tuck and cam across a clipped ground that just so happens to run to the 3 pin connector that is for the electric load deal.. i ahve been tracing wires looking fo the other clipped wire and havent found one.. can someone verify that this actually is run in conjunction with the ground distribution or is it just chassis grounded

please help!!!

 

well i put a chassis ground to it and the code went away,but i would still like this verified..