Engine Light On…again
Thread Starter
Racer
Joined: Jan 2005
Posts: 381
Likes: 0
From: Los Angeles Ca
Engine Light On…again
2005 Z51 78000 miles. Engine Light came on several months ago- had it scanned said catalitic converter needed replacing. Light went off- did not replace convertor. Driving to work today light came on again. Called On Star - scanned the car - said engine / ehaust indicator. They said drive at at high speeds for over a period of 7 days, if light doesn't go off go to dealer. Check for loss of power.
Im not making this up! To replace one of the cats is $700 clams parts and labor, so Im hoping light go off. Looking forward to driving at high speeds howverer
Im not making this up! To replace one of the cats is $700 clams parts and labor, so Im hoping light go off. Looking forward to driving at high speeds howverer
Team Owner
Joined: Sep 2000
Posts: 24,993
Likes: 2,694
From: Far NW 'burbs of Chicago
St. Jude Donor '13
2005 Z51 78000 miles. Engine Light came on several months ago- had it scanned said catalitic converter needed replacing. Light went off- did not replace convertor. Driving to work today light came on again. Called On Star - scanned the car - said engine / ehaust indicator. They said drive at at high speeds for over a period of 7 days, if light doesn't go off go to dealer. Check for loss of power.
Im not making this up! To replace one of the cats is $700 clams parts and labor, so Im hoping light go off. Looking forward to driving at high speeds howverer
Im not making this up! To replace one of the cats is $700 clams parts and labor, so Im hoping light go off. Looking forward to driving at high speeds howverer
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Cats typically are good for about 10 years---After that they break down and don't work as well---Only in cailf they are pricey but in other states they are cheap
One more thing-----Your car has 4 02 sensors the front 2 run the AFR for all the P/T fueling
The REAR 02's are there simply to report the "condition of your cats" They don't have anything to do with engine fueling at all--- You may simply have a bad rear 02--- you can change both rears for less than $100 in parts--- Quite often it's the sensors that fail 1st and not the cats---
One more thing-----Your car has 4 02 sensors the front 2 run the AFR for all the P/T fueling
The REAR 02's are there simply to report the "condition of your cats" They don't have anything to do with engine fueling at all--- You may simply have a bad rear 02--- you can change both rears for less than $100 in parts--- Quite often it's the sensors that fail 1st and not the cats---
Drifting
Joined: Feb 2012
Posts: 1,591
Likes: 94
From: Warwick Rhode Island
If your cats are not clogged and not losing power you can bypass the rear o2sensors by tricking them into thinking that everything is working properly… I did this on my Honda Accord after gutting the catalytic converter and after thousand miles no check engine light basically you get to spark plug non-followers drill half inch hole through one of them and put both on the end of the O2 sensor
http://www.civicforums.com/forums/229-electrical/329421-diy-o2-sensor-bypass-spark-plug-non-fouler-trick-installation-w-pics.html
http://www.civicforums.com/forums/229-electrical/329421-diy-o2-sensor-bypass-spark-plug-non-fouler-trick-installation-w-pics.html
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Le Mans Master
Joined: Dec 2004
Posts: 5,491
Likes: 806
From: West coast CA
2005 Z51 78000 miles. Engine Light came on several months ago- had it scanned said catalitic converter needed replacing. Light went off- did not replace convertor. Driving to work today light came on again. Called On Star - scanned the car - said engine / ehaust indicator. They said drive at at high speeds for over a period of 7 days, if light doesn't go off go to dealer. Check for loss of power.
Im not making this up! To replace one of the cats is $700 clams parts and labor, so Im hoping light go off. Looking forward to driving at high speeds howverer
Im not making this up! To replace one of the cats is $700 clams parts and labor, so Im hoping light go off. Looking forward to driving at high speeds howverer
Dealers still had some '05s on the lot by mid-December 2006. If yours was one of them, the catalytic converter is still covered under the 8-year/80,000-mile federal emissions warranty (barely).
Thread Starter
Racer
Joined: Jan 2005
Posts: 381
Likes: 0
From: Los Angeles Ca
Le Mans Master
Joined: Dec 2004
Posts: 5,491
Likes: 806
From: West coast CA
I bought my car in Sept 2004- As far as I know all warenties have expired. Being an early deleivery of a Z51 C6 over the years things like roofs, water pump, fan, fuse box, brakes, etc have been replaced. Some under warrenty some not. Its a M6 so I love it…,what can I say? Im just another dumb vette lover.
Do you know what trouble code is set?
Thread Starter
Racer
Joined: Jan 2005
Posts: 381
Likes: 0
From: Los Angeles Ca
Dont remember the code- I should. Light is still on- took it for a high speed ( 1 hour ) run up the 101 this saturday early AM. If the light is still on next week Ill deal with it then. The car is running great….no speed lag, no smell of rotten eggs…who knows? Thanks for your help.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
They used to make "rear 02' simulators" that would eliminate any rear 02 codes caused by aftermarket exhaust or long tube headers---Just a few years ago they quit selling them and they became illegal----You still may be able to find some and that would correct your problem----if not go to a local tuner--OR get a mail order tune for $150 and tell them what your codes are and why your car won't pass---and they will fix it for you !!
Thread Starter
Racer
Joined: Jan 2005
Posts: 381
Likes: 0
From: Los Angeles Ca
They used to make "rear 02' simulators" that would eliminate any rear 02 codes caused by aftermarket exhaust or long tube headers---Just a few years ago they quit selling them and they became illegal----You still may be able to find some and that would correct your problem----if not go to a local tuner--OR get a mail order tune for $150 and tell them what your codes are and why your car won't pass---and they will fix it for you !!