whynot

I have a mastach cable from years ago but cannot remember the pinout on it, lost the paper it came with.

I just picked up a 95 z28 that was neglected. Opti wire harness had bare wires and the plug to the opti wa crushed so someone just siliconed it in. plus were all won to .070 fuel pump line in the tank had split and pump only had 23 lbs of pressure after fixing the line so bad pump. Well I am still getting a ses light and would like to find out what's causing it.