P2270 Diagnostic Trouble Code Discussion for April 2011
Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Biased Lean
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| Help Request | Posted | |
| 2006 Cadillac CTS 2.8L Poor Idle Quality, Hesitation, Poor Fuel Economy, MIL Lamp on VIN: 1G6DM57T56 P2270: Heated Oxygen Sensor (Bank 1 Sensor 2) Signal Stuck Lean. Hey guys. This customer requested a used engine b/c the dealer said the chain jumped and bent all the valves. I installed the engine and it ran great. The customer put [...] on it and the CEL came on with the codes listed below. When I clear the codes the one ... |
April 26, 2011 |
