Possible causes
– Faulty HO2S Sensor Bank 1 Sensor 2
– HO2S Sensor Bank 1 Sensor 2 harness is open or shorted
– HO2S Sensor Bank 1 Sensor 2 electrical circuit poor connection
– HO2S Sensor Bank 1 Sensor 2 harness is open or shorted
– HO2S Sensor Bank 1 Sensor 2 electrical circuit poor connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)