Bow-Tie Guy
Member
- Joined
- Mar 21, 2008
- Messages
- 11
- Location
- Coastside, CA
- Corvette
- 1997 C5 Coupe, 1978 C3 Pace Car, 1981 C3 Coupe
Hello, all.
I've got an '81 with a flickering Check Engine light. Did a lot of searching on the subject and everything leads to checking the flashing codes. Here's the problem I'm having. The check engine light just randomly flickers while running. When I try to check the codes, I don't even get the initial 1-2 diagnostic flash code. In fact, I get nothing at all! But once I start the car, the flickering starts up again.
I just had the carb rebuilt and the car is running pretty smooth. I wouldn't care about the darn light if it weren't for the fact the I need to smog the car. (Gotta love California...:W)
Anyway, I'm suspecting that the flickering is the result of a short in the ground wire from the ECM to the Check Engine light, but what would prevent the 1-2 code from flashing in the first place? Bad ECM, too? Should I start with the wire first and work back to the ECM? (Man, I hate electrical "issues"...;help)
I've got an '81 with a flickering Check Engine light. Did a lot of searching on the subject and everything leads to checking the flashing codes. Here's the problem I'm having. The check engine light just randomly flickers while running. When I try to check the codes, I don't even get the initial 1-2 diagnostic flash code. In fact, I get nothing at all! But once I start the car, the flickering starts up again.
I just had the carb rebuilt and the car is running pretty smooth. I wouldn't care about the darn light if it weren't for the fact the I need to smog the car. (Gotta love California...:W)
Anyway, I'm suspecting that the flickering is the result of a short in the ground wire from the ECM to the Check Engine light, but what would prevent the 1-2 code from flashing in the first place? Bad ECM, too? Should I start with the wire first and work back to the ECM? (Man, I hate electrical "issues"...;help)