89 corvette no injector pulse
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
I would suspect either the ECM or a grounded circuit. I would check the wires at the ECM with a FSM.
Oh, how did you check the injector harness circuits? test light, volt meter, noid light???
Oh, how did you check the injector harness circuits? test light, volt meter, noid light???
Melting Slicks
Joined: Apr 2002
Posts: 2,118
Likes: 0
From: St. Charles, MO Route 66 Corvette Club
Joe:
Please be advised that the 89 ECM has a "quirk" programmed into it in that two full revolutions of the crank must be made before the injectors will fire. You will need to get a noid light like the one below to assure that the injectors are firing. Also, make sure your two injector fuses are OK in the fuse panel. You can get the noid light at NAPA and it costs less than $20.
Hope this is helpful.
Please be advised that the 89 ECM has a "quirk" programmed into it in that two full revolutions of the crank must be made before the injectors will fire. You will need to get a noid light like the one below to assure that the injectors are firing. Also, make sure your two injector fuses are OK in the fuse panel. You can get the noid light at NAPA and it costs less than $20.
Hope this is helpful.
Last edited by Sam Lam; Aug 28, 2007 at 12:34 AM.
