I have searched for a quite a bit on here and google and I havent found anything to help me fix the check engine light. I want to set the timing with a timing light and I know you have to put it into bypass mode where the check engine light flashes randomly and the rpm goes to base timing but I cant seem to get the check engine light to come on. We checked the bulb already and it still wont come on. Any suggestions would be nice.

 

Well, first, put a wire in the diagnostic connector as though you're pulling codes and make sure the ECM CAN turn the light on in the first place.

 

Cel should come on when you turn on the key for a few seconds.
Get a wiring diagram & do a continuity check between the cel socket & the other end (ecm & ground) of the circuit.