Help - Check Engine Light went on
Thread Starter
Racer
Joined: Oct 2002
Posts: 310
Likes: 4
Help - Check Engine Light went on
While driving to a car show today I noticed the light. I immediately pulled into a parking lot and got out the manual. The light is on steady and it says "an emission control system malfunction has been detected on your vehicle".
I have an '02 ZO6 with 4,300 miles and a GM extended warranty. I shutter at the thought of taking my baby to a dealer but I'm not sure I have any options.
Any words of wisdom?
Thanks, in advance.
I have an '02 ZO6 with 4,300 miles and a GM extended warranty. I shutter at the thought of taking my baby to a dealer but I'm not sure I have any options.
Any words of wisdom?
Thanks, in advance.
Thread Starter
Racer
Joined: Oct 2002
Posts: 310
Likes: 4
Originally Posted by 30yrwait
I've heard that can be caused by a loose gas filler cap. Worth a check.
Thanks
Thread Starter
Racer
Joined: Oct 2002
Posts: 310
Likes: 4
Originally Posted by Mark-44
Fill the tank with 93 octane gasoline; easy on the burn-outs for a while... light will go out. 
Team Owner
Joined: Aug 2002
Posts: 35,617
Likes: 166
Tech Contributor
Cruise-In 11 Veteran
NCM Ambassador
St. Jude Donor '05-'06-'07-'10
Go to this site:
www.97vette.com and follow the instructions near the bottom on how to decode your C5's computer codes. Post the codes here and it should lead to a diagnosis. Codes with an H after them are history codes and have cleared, codes with a C are current. Post the codes (likely in the PCM section 10) once there, press and hold the reset and the light will go out. Let us know what you find.
Paul
www.97vette.com and follow the instructions near the bottom on how to decode your C5's computer codes. Post the codes here and it should lead to a diagnosis. Codes with an H after them are history codes and have cleared, codes with a C are current. Post the codes (likely in the PCM section 10) once there, press and hold the reset and the light will go out. Let us know what you find.
Paul
Burning Brakes
Joined: Sep 2003
Posts: 889
Likes: 0
From: Plum PA
Do you have a Cags Skip shift eliminator installed ? I installed one on mine and it worked for 3 months ok then my check engine light came on and stayed on. Took it in thinking it was covered under warranty. Turns out the skip shift eliminator I put on went bad and threw the check engine light on. they charged me $90 for analysis and said your part you put on caused the light to come on. When they took it off the check engine light went out. I purchased another one and have had no problems since. If you put one on you might want to check and see if it went Bad. Hope that helps you.
Thread Starter
Racer
Joined: Oct 2002
Posts: 310
Likes: 4
Originally Posted by fop91
Do you have a Cags Skip shift eliminator installed ? I installed one on mine and it worked for 3 months ok then my check engine light came on and stayed on. Took it in thinking it was covered under warranty. Turns out the skip shift eliminator I put on went bad and threw the check engine light on. they charged me $90 for analysis and said your part you put on caused the light to come on. When they took it off the check engine light went out. I purchased another one and have had no problems since. If you put one on you might want to check and see if it went Bad. Hope that helps you.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
Thread Starter
Racer
Joined: Oct 2002
Posts: 310
Likes: 4
Originally Posted by talon90
Go to this site:
www.97vette.com and follow the instructions near the bottom on how to decode your C5's computer codes. Post the codes here and it should lead to a diagnosis. Codes with an H after them are history codes and have cleared, codes with a C are current. Post the codes (likely in the PCM section 10) once there, press and hold the reset and the light will go out. Let us know what you find.
Paul
www.97vette.com and follow the instructions near the bottom on how to decode your C5's computer codes. Post the codes here and it should lead to a diagnosis. Codes with an H after them are history codes and have cleared, codes with a C are current. Post the codes (likely in the PCM section 10) once there, press and hold the reset and the light will go out. Let us know what you find.
Paul
Thanks, again!
