Possible causes – Faulty HO2S12 Sensor– Exhaust leak near HO2S12 Sensor– HO2S12 Sensor harness is open or shorted– HO2S12 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Tag: VOLKSWAGEN
P2270 VOLKSWAGEN HO2S12 Sensor Signal Stuck Lean
Possible causes – Faulty HO2S12– Lean Air/Fuel Ratio- Check fuel system– HO2S12 harness is open or shorted– Blocked converter Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1148 VOLKSWAGEN HO2S21 System Too Rich
Possible causes – Faulty HO2S21– Fualty Mass Air Flow (MAF) Sensor– HO2S21 harness is open or shorted– HO2S21 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1147 VOLKSWAGEN HO2S21 System Too Lean
Possible causes – Faulty HO2S21– HO2S21 harness is open or shorted– HO2S21 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1131 VOLKSWAGEN HO2S21 Inner Resistance Too Large
Possible causes – Faulty HO2S21– HO2S21 harness is open or shorted– HO2S21 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1131 VOLKSWAGEN OBD Code Description HO2S21 Heather Oxygen Sensor Bank 2 Sensor 1
P1109 VOLKSWAGEN HO2S22 Sensor Circuit Voltage Too Low Air Leak
Possible causes – Faulty HO2S22 Sensor– HO2S22 Sensor harness is open or shorted– HO2S22 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1101 VOLKSWAGEN HO2S11 Sensor Circuit Voltage Too Low Air Leak
Possible causes – Faulty HO2S11 Sensor– Exhaust leak near HO2S11 Sensor– HO2S11 Sensor harness is open or shorted– HO2S11 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1102 VOLKSWAGEN HO2S Heating Circuit Bank 1 Sensor 1 Short to B+
Possible causes – Faulty HO2S11 Sensor– Exhaust leak near HO2S11 Sensor– HO2S11 Sensor harness is open or shorted– HO2S11 Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1149 VOLKSWAGEN HO2S11 Implausible Control Value
Possible causes – Faulty HO2S11– HO2S11 harness is open or shorted– HO2S11 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
P1112 VOLKSWAGEN HO2S Control Bank 1 System Too Rich
Possible causes – Faulty HO2 Sensor Bank 1– HO2 Sensor Bank 1 harness is open or shorted– HO2 Sensor Bank 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)