AUDI - OBD II Codes, OBD 2 Codes - Page 18

P1110 AUDI HO2S Heating Circuit Bank 2 Sensor 2 Short To Positive

Possible causes – Faulty HO2S Heating Circuit Bank 2 Sensor 2– HO2S Heating Circuit Bank 2 Sensor 2 harness is open or shorted– HO2S Heating Circuit Bank 2 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or

P1125 AUDI Long Term Fuel Trim Adjustment Bank 2 System Too Rich

Possible causes – Faulty HO2S– Faulty Mass Air Flow Sensor– High fuel pressure– Canister purge solenoid stuck open– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1123 AUDI Long Term Fuel Trim Adjustment Bank 1 System Too Rich

Possible causes – Faulty HO2S– Faulty Mass Air Flow Sensor– High fuel pressure– Canister purge solenoid stuck open– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1126 AUDI Long Term Fuel Trim Adjustment Bank 2 System Too Lean

Possible causes – Faulty HO2S– Faulty Mass Air Flow Sensor– High fuel pressure– Canister purge solenoid stuck open– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1127 AUDI Long Term Fuel Trim B1 System Too Rich

Possible causes – Faulty HO2S– Faulty Mass Air Flow Sensor– High fuel pressure– Canister purge solenoid stuck open– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1124 AUDI Long Term Fuel Trim Adjustment Bank 1 System Too Lean

Possible causes – Faulty HO2S– Faulty Mass Air Flow Sensor– High fuel pressure– Canister purge solenoid stuck open– HO2S harness is open or shorted– HO2S circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1102 AUDI 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)

P1101 AUDI 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)

P1149 AUDI 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)

P1104 AUDI HO2S12 Sensor Circuit Voltage Too Low Air Leak

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)

P1100 AUDI HO2S12 Sensor Circuit Voltage Too Low Air Leak

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)

P1148 AUDI 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) AUDI Technical Service Bulletins for P1148 code

P2270 AUDI 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)

P1147 AUDI 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) AUDI Technical Service Bulletins for P1147 code 2002 AUDI A4 ENGINE AND ENGINE

P1131 AUDI 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 AUDI Description HO2S21 Heather Oxygen Sensor Bank 2 Sensor 1

P1109 AUDI 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)

P1140 AUDI HO2S22 Internal Resistance Too High

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)

P1040 AUDI Injector 1 Supply Voltage Circuit Malfunction

Possible causes – Faulty injector 1– Injector 1 harness is open or shorted– Injector 1 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1042 AUDI Injector 2 Supply Voltage Circuit Malfunction

Possible causes – Faulty injector 2– Injector 2 harness is open or shorted– Injector 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P1041 AUDI Injector 2 Supply Voltage Short Circuit

Possible causes – Faulty injector 2– Injector 2 harness is open or shorted– Injector 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)