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      01-19-2014, 06:42 PM   #1
tmntmn
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Cel 27c6 - P2096

Thanks for BMWLOGGER i was able to pull CEL 27C6 and P2096 off my friends generic scanner, i was wondering what i should check first to get this issue resolve.

Thanks for Regular Guy for posting this up but I'm not sure where to start, Should I check for an exhaust leak and how would i do so? or my o2 sensor are bad?

this is what Regular Guy posted up from my CEL code

27C6 - P2096
Information saved in DME
Fault code 27C6 - P2096
Fault text Oxygen sensor, adaptation, trim control, bank 1
Fault description Post Catalyst Fuel Trim System Too Lean (Bank 1)
Condition for fault identification Test condition: Adaptation value reaches MIN limit and hangs in this position
. Terminal condition: Engine running
. Voltage condition: Battery voltage > 9.8V (k_diag_tr_ub_min)
Condition for fault memory entry Counter for recognition at adaptation limit >= (2x) K_LA_TRIM_DIAG_I_AD_MAX_SCHW
Action in service 1. Check the fuel system and the exhaust system for leaks
. 2. Check pre-cat and post-cat sensors and replace as indicated
Fault effect and breakdown warning MIL on after engine runs 2x
Driver information Warning light: MIL
Service instruction none
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      01-20-2014, 02:37 AM   #2
Mike Benvo
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Mileage on the car?
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      01-20-2014, 12:49 PM   #3
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Quote:
Originally Posted by Mike Benvo View Post
Mileage on the car?
little over 57k
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      01-20-2014, 09:18 PM   #4
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I would replace both pre cat oxygen sensors. You could get away with replacing the offending one, but we've seen them go out on cars with less than 30K that are bone stock.
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      01-21-2014, 12:27 PM   #5
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Quote:
Originally Posted by Mike Benvo View Post
I would replace both pre cat oxygen sensors. You could get away with replacing the offending one, but we've seen them go out on cars with less than 30K that are bone stock.
Do you have the part number by any chance or know who makes our o2 sensor?

Thanks Mike!
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