Okay so my 1991 camaro rs 305 check engine light will not come on
I took my gauge cluster out and check all the bulbs the bulbs were in good condition
Even if I turn the ignition on the lights come on expect the dang Check engine light
Can someone help me with this situation

 

when you turn on the ignition switch to the acc position the ecm grounds ecm connector pin a5. putting the ecm in diagnostic mode with the key on will also light up the ses light.

http://chevythunder.com/1228746_ecm_198992_tbi.htm

if this circuit test out check for power to the ecm. If that test ok you have a faulty ecm.

 

Ill check it out thanks