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      08-17-2018, 10:23 AM   #1
Stealthbombing
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02 Sensor Codes HELP !

2008 135i n54 full stage 2 with 113km on the clock. Im currently getting a 2CA7 & 2CAB code which reads ( Oxygen Sensor heater 2 before Catalytic converter & Oxygen Sensor 2 before catalytic converter temperature.) I believe these codes relate to the heater ? im not too sure what the fix is here and if its okay to drive my car, do these codes mean my o2 sensor is done ?

the car seems to be running okay and the code comes and goes.
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      08-17-2018, 11:12 AM   #2
amg6975
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Same thing just happened to my N55. You can drive it without issue but the sensor has to be replaced.
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      08-17-2018, 02:05 PM   #3
Stealthbombing
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hmmm so its not affecting AFR's then ?
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