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P2271 Diagnostic Trouble Code Discussion for April 2015

Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Biased Rich

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Trouble Ticket Help Requests for DTC P2271
Help Request Posted
2008 Chevrolet Silverado 1500 WT 4.3L Poor Idle Quality, MIL Lamp on VIN: 1GCEC14X38
P2271: B1s2 o2 stuck rich. Hi guys. This thing is so intermitant, when i see it act up on scanner and go lean at idle, im not at the shop to ck it out. Always on test drive, cant duplacate in shop. Readings look good + - 3 trims.when it acts up it goes 24 +. Short just b1. B2 stays ok. ...
April 18, 2015
2007 Honda Fit Sport 1.5L MIL Lamp on VIN: JHMGD37627
P2271: Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich. Howdy- This Honda has an issue with high 02S2 voltage. Voltage will reach 1v and sets MIL P02271- 02S2 rich limit. Sensor replaced with overheated cat and damaged coils. (OEM cat and aftermarket NOK sensor) O2 sensor relearn procedure following repair. * Com...
April 30, 2015