Possible causes
– Faulty Oxygen Sensor Bank 1 Sensor 2
– Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted
– Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection
– Lean air/fuel ratio-Low fuel pressure, vacuum leak
– Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted
– Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection
– Lean air/fuel ratio-Low fuel pressure, vacuum leak
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)