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Old 12-09-2005, 11:04 AM   #1
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check engine light

check engine light keeps coming back,, bank 2 system lean,,, have installed cold air and true duals,,, can i get the computer reprogrammed to defeat light? any suggestions wil be helpful
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Old 12-09-2005, 11:09 AM   #2
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Re: check engine light

a cai or exhaust (if cat back) should not trip any lights, do you have your cats or were they removed as well?
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Old 12-09-2005, 11:11 AM   #3
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Re: check engine light

all cats still in place... no changes except from cat back and cold air
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Old 12-09-2005, 11:13 AM   #4
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Re: check engine light

You could have an 02 sensor gone bad, how many miles are on the car?
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Old 12-09-2005, 11:17 AM   #5
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Re: check engine light

116k....codes do not show up o2 sensor,,,,
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Old 12-09-2005, 11:19 AM   #6
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Re: check engine light

Yes, I know, but I was trying to remember what bank 2 lean code stands for. I thought it was the 02 sensors reading wrong. Maybe I'm wrong.
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Old 12-09-2005, 11:22 AM   #7
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Re: check engine light

possible,, i cant remember,, my son has it off at college,,, ill get it back home next week try it again,,,thanks for the info
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Old 12-09-2005, 11:52 AM   #8
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Re: check engine light

90% of the time its the o2 sensor. I would change your o2 sensor. they usually run about 60-70 dollars. a car with that many miles, i would expect your o2 sensors to go. just change them out and if the engine light still comes on just go somewhere and get it cleared. Advance auto parts CAN clear codes sort of. they get up the screen to to point where you have to press the delete button because it's a liability thing. if it was the o2 sensors the check engine light won't come on again. if it wasn't the o2 sensor it will come on again.
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Old 01-13-2007, 06:31 PM   #9
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Re: check engine light

I don't know what your problem is, but would like to know. I have the same problem with a 96 v6 with duals.
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Old 01-13-2007, 07:16 PM   #10
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Re: check engine light

We erased the fault codes and drove about 2 miles. The same fault came back. We got two faults. Both were bank 2 lean.
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