Check engine light?
Thread Starter
Intermediate
Joined: Aug 2006
Posts: 47
Likes: 0
From: Cary Illinois
Check engine light?
Hi All - Wondered if anyone was having similar expereince....mine is an
'06 M6 Z51, Melrose headers, GM Racing Exhaust, 1700 miles...check engine light comes on very randomly, and has been doing this before and after header and exhaust install.... Took it to dealer first time, and they replaced gas cap, said defective. Took back to dealer second time, they said no exhaust leaks anywhere, kept car all day ran several tests and finally came up with I must have used 87 octane gas..NOT...each time after dealer reset the code, the light would eventually come back on and then go off after several start/stop sequences. I use 93 octane religiously, and always double check that the gas cap is screwed on correctly (click, click, click) Also, the light will come on and go off multiple times on the same tank of gas...really puzzling.
'06 M6 Z51, Melrose headers, GM Racing Exhaust, 1700 miles...check engine light comes on very randomly, and has been doing this before and after header and exhaust install.... Took it to dealer first time, and they replaced gas cap, said defective. Took back to dealer second time, they said no exhaust leaks anywhere, kept car all day ran several tests and finally came up with I must have used 87 octane gas..NOT...each time after dealer reset the code, the light would eventually come back on and then go off after several start/stop sequences. I use 93 octane religiously, and always double check that the gas cap is screwed on correctly (click, click, click) Also, the light will come on and go off multiple times on the same tank of gas...really puzzling.
Team Owner
Joined: Sep 1999
Posts: 20,054
Likes: 44
From: Swansea IL
w/o knowing what codes are being generated we'll all be guessing. I bought and error code reader just for C6 since GM changed this feature from the C5 (where you could easily view and clear error codes via the DIC).
I bought the http://www.diydiagnostics.com/ just to avoid making trips to the dealer if/when my C6 starts throwing codes, especially if they are self-induced like installing mods.
My recommendation for any modded C6 is to spend $70 and buy an DIY error code reader.
Good luck
Tom
I bought the http://www.diydiagnostics.com/ just to avoid making trips to the dealer if/when my C6 starts throwing codes, especially if they are self-induced like installing mods.
My recommendation for any modded C6 is to spend $70 and buy an DIY error code reader.
Good luck
Tom
Melting Slicks
Joined: Jan 2006
Posts: 3,003
Likes: 1
From: Life ain't no dress rehearsal, are you gonna wait to get your toys til AFTER you have a heart attack?
Originally Posted by Shelby Tom
Hi All - Wondered if anyone was having similar expereince....mine is an
'06 M6 Z51, Melrose headers, GM Racing Exhaust, 1700 miles...check engine light comes on very randomly, and has been doing this before and after header and exhaust install.... Took it to dealer first time, and they replaced gas cap, said defective. Took back to dealer second time, they said no exhaust leaks anywhere, kept car all day ran several tests and finally came up with I must have used 87 octane gas..NOT...each time after dealer reset the code, the light would eventually come back on and then go off after several start/stop sequences. I use 93 octane religiously, and always double check that the gas cap is screwed on correctly (click, click, click) Also, the light will come on and go off multiple times on the same tank of gas...really puzzling.
'06 M6 Z51, Melrose headers, GM Racing Exhaust, 1700 miles...check engine light comes on very randomly, and has been doing this before and after header and exhaust install.... Took it to dealer first time, and they replaced gas cap, said defective. Took back to dealer second time, they said no exhaust leaks anywhere, kept car all day ran several tests and finally came up with I must have used 87 octane gas..NOT...each time after dealer reset the code, the light would eventually come back on and then go off after several start/stop sequences. I use 93 octane religiously, and always double check that the gas cap is screwed on correctly (click, click, click) Also, the light will come on and go off multiple times on the same tank of gas...really puzzling.
Why would the dealer suggest that you were getting the "Check engine" light because you may have used 87 Octane gas? The car is supposed to be made to run on 87 Octane gas (with reduced performance). Besides, if you went totally
and did use it, there would still be some 93 in the tank and the resultant mix would be above 87 Octane. Sounds like the dealer was trying to pull excuses of of their azz.
Safety Car
Joined: Feb 2005
Posts: 3,557
Likes: 1
From: LongIsland,NY............
2 Possible things.#1. the gas cap might not be on correctly,or#2 I get a code very rarely with the headers install.The code comes back to the car is running too lean.I have cancelled the code 2 times in 1 year.So far it has not come back.
Thread Starter
Intermediate
Joined: Aug 2006
Posts: 47
Likes: 0
From: Cary Illinois
Originally Posted by AFVETTE
w/o knowing what codes are being generated we'll all be guessing. I bought and error code reader just for C6 since GM changed this feature from the C5 (where you could easily view and clear error codes via the DIC).
I bought the http://www.diydiagnostics.com/ just to avoid making trips to the dealer if/when my C6 starts throwing codes, especially if they are self-induced like installing mods.
My recommendation for any modded C6 is to spend $70 and buy an DIY error code reader.
Good luck
Tom
I bought the http://www.diydiagnostics.com/ just to avoid making trips to the dealer if/when my C6 starts throwing codes, especially if they are self-induced like installing mods.
My recommendation for any modded C6 is to spend $70 and buy an DIY error code reader.
Good luck
Tom
Instructor
Joined: Aug 2006
Posts: 116
Likes: 8
Originally Posted by AFVETTE
w/o knowing what codes are being generated we'll all be guessing. I bought and error code reader just for C6 since GM changed this feature from the C5 (where you could easily view and clear error codes via the DIC).
I bought the http://www.diydiagnostics.com/ just to avoid making trips to the dealer if/when my C6 starts throwing codes, especially if they are self-induced like installing mods.
My recommendation for any modded C6 is to spend $70 and buy an DIY error code reader.
Good luck
Tom
I bought the http://www.diydiagnostics.com/ just to avoid making trips to the dealer if/when my C6 starts throwing codes, especially if they are self-induced like installing mods.
My recommendation for any modded C6 is to spend $70 and buy an DIY error code reader.
Good luck
Tom
