08 C6: Throwing codes after track weekend. Please help.
Thread Starter
Le Mans Master
Joined: May 2000
Posts: 6,032
Likes: 124
From: Dallas TX
08 C6: Throwing codes after track weekend. Please help.
After a few hard sessions, my check engine light came on. The car ran fine, so I ran the last two sessions and got home. It's throwing these codes right now when I hooked up an OBD2 scanner:
P0050
P0153
P0154
P0155
The car has long-tube headers, Corsa cat-back, and Killer Bee intake. It has been tuned and has run perfectly the past several months including two previous track weekends.
Note: It did seem to not be idling quite a smoothly as normal, but I could just be paranoid. It did seem to make a bit of an unusual pop noise every few seconds, but with my header/exhaust set-up, it's quite nasty sounding anyway.
Any help would be GREATLY appreciated!
Corey
P0050
P0153
P0154
P0155
The car has long-tube headers, Corsa cat-back, and Killer Bee intake. It has been tuned and has run perfectly the past several months including two previous track weekends.
Note: It did seem to not be idling quite a smoothly as normal, but I could just be paranoid. It did seem to make a bit of an unusual pop noise every few seconds, but with my header/exhaust set-up, it's quite nasty sounding anyway.
Any help would be GREATLY appreciated!
Corey
Thread Starter
Le Mans Master
Joined: May 2000
Posts: 6,032
Likes: 124
From: Dallas TX
Thank you for the very quick response, Motorhead-47. If it is the 02 sensor, I would be surprised it went bad so quickly as I only have 7,700 miles on the car. I will admit they have been rather hard miles though. 
Can they go bad that quickly if I have 1 7/8 AR headers, no cats, and Corsa Z06 exhaust on an LS3? Why would an aftermarket exhaust system cause an 02 failure or is it unrelated?
Could I get a dealership to replace it under warranty or am I SOL in that regard?
Can they go bad that quickly if I have 1 7/8 AR headers, no cats, and Corsa Z06 exhaust on an LS3? Why would an aftermarket exhaust system cause an 02 failure or is it unrelated?Could I get a dealership to replace it under warranty or am I SOL in that regard?
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
Failed o2 sensors are probably the most common malfunction in today's cars. You should check the wire routing to make sure your o2 sensor wires haven't touched the header somewhere and melted. Hard driving can kill an o2 sensor so mileage really isn't a player here. I'm not inclined to believe your dealer will cover replacement since it is not an OEM install location (headers) and you are running a non-OEM ECU calibration. He might, but I doubt it. It's about a $75.00 part available at virtually ANY auto parts store.
Last edited by Motorhead-47; May 17, 2009 at 08:51 PM.
Heel & Toe
Joined: May 2009
Posts: 23
Likes: 0
From: Downingtown PA
Thank you for the very quick response, Motorhead-47. If it is the 02 sensor, I would be surprised it went bad so quickly as I only have 7,700 miles on the car. I will admit they have been rather hard miles though. Can they go bad that quickly if I have 1 7/8 AR headers, no cats, and Corsa Z06 exhaust on an LS3? Why would an aftermarket exhaust system cause an 02 failure or is it unrelated?
Could I get a dealership to replace it under warranty or am I SOL in that regard?
Can they go bad that quickly if I have 1 7/8 AR headers, no cats, and Corsa Z06 exhaust on an LS3? Why would an aftermarket exhaust system cause an 02 failure or is it unrelated?Could I get a dealership to replace it under warranty or am I SOL in that regard?
You could try, but the hard driving and lack of cats likely fouled the 02's. We used to use spacers to drop them out of exhaust a bit. It worked on my old german cars, never know.
Thread Starter
Le Mans Master
Joined: May 2000
Posts: 6,032
Likes: 124
From: Dallas TX
I'm willing to pay for a new sensor as my driving and aftermarket headers invariably contributed to the failure. I'm glad it's a quick fix. I did check under the car when I was putting my street wheels/tires back on and the wires didn't seem to be touching anything. I don't have rear 02 sensors as my cats are missing, so I guess the only two that can go bad are the front. I'll buy a sensor and replace it on the passenger side.
Thanks again for all of your help. If you're ever in DFW, give me a buzz and I'll buy you a few beers or coffee (if that's your preference).
Thanks again for all of your help. If you're ever in DFW, give me a buzz and I'll buy you a few beers or coffee (if that's your preference).
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
(edit for stupidity
)
P0050-HO2S Heater Control Circuit (Bank 2 Sensor 1)
P0153-HO2S Circuit Slow Response Bank 2 Sensor 1
P0154-H02S Circuit Insufficient Activity Bank 2 Sensor 1
P0155-HO2S Heater Circuit Bank 2 Sensor 1
)P0050-HO2S Heater Control Circuit (Bank 2 Sensor 1)
P0153-HO2S Circuit Slow Response Bank 2 Sensor 1
P0154-H02S Circuit Insufficient Activity Bank 2 Sensor 1
P0155-HO2S Heater Circuit Bank 2 Sensor 1
Last edited by White_Lightning; May 17, 2009 at 09:52 PM.
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Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
Cory.. do you have HP tuners? if so you can tune out the rear o2s and disable the CEL
P0050-HO2S Heater Control Circuit (Bank 2 Sensor 1)
P0153-HO2S Circuit Slow Response Bank 2 Sensor 1
P0154-H02S Circuit Insufficient Activity Bank 2 Sensor 1
P0155-HO2S Heater Circuit Bank 2 Sensor 1
P0050-HO2S Heater Control Circuit (Bank 2 Sensor 1)
P0153-HO2S Circuit Slow Response Bank 2 Sensor 1
P0154-H02S Circuit Insufficient Activity Bank 2 Sensor 1
P0155-HO2S Heater Circuit Bank 2 Sensor 1
Bank 2 Sensor 1 = Forward O2 on the passenger side. Tuning out his rear O2's isn't going to help him.
Melting Slicks
Joined: Oct 2000
Posts: 3,368
Likes: 30
From: dfw Texas
