Failed emmissions
Thread Starter
Heel & Toe
Joined: Nov 2023
Posts: 20
Likes: 0
A flashing cel normally indicates a misfire, but my car isn't. No codes are stored, so I replaced coils, plugs, wires, put fuel cleaner in. Took it to a corvette master mechanic, he said the car runs great, maybe something with the edelbrock tune, so I had it tuned. He says everything looks great, the car runs strong, I donno.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,309
Likes: 3,925
From: Cape Coral, Florida
A flashing cel normally indicates a misfire, but my car isn't. No codes are stored, so I replaced coils, plugs, wires, put fuel cleaner in. Took it to a corvette master mechanic, he said the car runs great, maybe something with the edelbrock tune, so I had it tuned. He says everything looks great, the car runs strong, I donno.
Thread Starter
Heel & Toe
Joined: Nov 2023
Posts: 20
Likes: 0
Did that 2 weeks ago. I've been through all the forums looking into it. The only thing I haven't done is the injectors and battery, which the battery dropped to 11v when I was stuck in traffic with the a/c on. Tune guy checked my fuel trims and everything looks good
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,309
Likes: 3,925
From: Cape Coral, Florida
…sorry but can’t diagnose it for you over the Internet.
Last edited by C5 Diag; Oct 1, 2024 at 03:50 PM.
Racer
Joined: Mar 2015
Posts: 344
Likes: 108
To add one more point of reference, check to see if your state performs a physical inspection of the exhaust system as part of the emissions test. In Connecticut this has been an integral part of the test, including cars that are being registered in-state for the first time. If a car originally was factory equipped with catalytic converters and they have been removed, the car will fail the inspection.
