BMW Cars 1999-06

4.4L V8 - Std 7

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Trouble Code: P2272



O2 Sensor Signal Stuck Lean Bank 2 Sensor 2

Possible Causes:



Oxygen sensor (before catalytic converter) is faulty
 
Oxygen sensor heater (before catalytic converter) is faulty
 
Oxygen sensor heater (before catalytic converter) is faulty
 
Oxygen sensor heater (behind catalytic converter) is faulty
 
O2S circuit is open or shorted in the wiring harness
 

Trouble Code: P2273



O2 Sensor Signal Stuck Rich Bank 2 Sensor 2

Possible Causes:



Oxygen sensor (before catalytic converter) is faulty
 
Oxygen sensor heater (before catalytic converter) is faulty
 
Oxygen sensor heater (before catalytic converter) is faulty
 
Oxygen sensor heater (behind catalytic converter) is faulty
 
O2S circuit is open or shorted in the wiring harness
 

 
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