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P2271 Diagnostic Trouble Code Discussion for May 2018

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


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Trouble Ticket Help Requests for DTC P2271
Help Request Posted
2006 Ford E-250 4.6L Poor Idle Quality, Misfire VIN: 1FTNE24W06
P2271: o2 sensor latched up richb1 s2. ... was running rough,and he did not recall how long since plug change.I pulled all plugs,did a compression test,replaced plugs& blocked fuel filter(lean code).took it for road test with hand held scan tool watching readiness monitors.in a fairly shor...
May 22, 2018