Fault Code P2271
Code meaning, symptoms, possible causes, part number, and estimated cost.
P2271
O2 Sensor Stuck Rich Bank 2 Sensor 2
This code indicates that the O2 sensor for Bank 2, Sensor 2, is consistently reporting a rich fuel mixture. This could point to an issue with the sensor itself or the exhaust/fuel system.
Part Details
Part Name
O2 Sensor
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪400 - ₪1200
Engine Location
Exhaust pipe, after the catalytic converter
Symptoms
- Check Engine Light on
- Smell of unburnt fuel from exhaust
- Increased fuel consumption
- Black smoke from exhaust
Possible Causes
- 1Faulty oxygen sensor
- 2Exhaust system leak (before the sensor)
- 3Leaking fuel injector
- 4Excessively high fuel pressure
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