DTC P2274 - O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 3)
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DTC DESCRIPTION P2274 - O2 SENSOR SIGNAL BIASED/STUCK LEAN (BANK 1 SENSOR 3)
| Description: This DTC sets when the heated oxygen sensor bank 1, sensor 3 (HO2S13) signal is less than the calibrated rich value during the current key cycle and, after three consecutive intrusive events, the signal cannot be forced greater than the calibrated rich value. | |||
Possible Causes:
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| Diagnostic Aids: Check for leaks in the exhaust system. Check for an intermittent HO2S13 signal. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST DW . | ||