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P2271 Diagnostic Trouble Code Discussion for July 2012

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

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Trouble Ticket Help Requests for DTC P2271
Help Request Posted
2005 Honda CR-V LX 2.4L MIL Lamp on VIN: JHLRD68525
P2271: Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Rich. ... the vehicle to the Honda dealer for a P2271 and P0139. Dealer replaced O2 sensor. Light came back on. Dealer told him that it was electrical. I can hook up scan tool and watch the sensor switch to .0 and .1 while decelerating, but while driving it stays be...
July 25, 2012