Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 2– Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or
Possible causes – Faulty Heated Oxygen Sensor Bank 1 Sensor 2– Heated Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted– Heated Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or
Possible causes – Faulty HO2S– Fuel system concern– Engine vacuum leak or open EGR valve at idle– Engine mechanical condition Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
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)
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)
Possible causes – Faulty O2 Sensor 1/2– O2 Sensor 1/2 harness is open or shorted– O2 Sensor 1/2 circuit poor electrical connection – Exhaust leak– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning
Possible causes – Faulty O2 Sensor 1/2– O2 Sensor 1/2 harness is open or shorted– O2 Sensor 1/2 circuit poor electrical connection – Exhaust leak– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning
Possible causes – Faulty O2 Sensor 1/2– O2 Sensor 1/2 harness is open or shorted– O2 Sensor 1/2 circuit poor electrical connection – Exhaust leak– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning
Possible causes – Faulty O2 Sensor Bank 1 Sensor 2– O2 Sensor Bank 1 Sensor 2 harness is open or shorted– O2 Sensor Bank 1 Sensor 2 circuit poor electrical connection– Air leak near oxygen sensor When is the code
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 Symptoms
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 Symptoms
Possible causes – Faulty oxygen sensor– Air leak near sensor– Low fuel pressure– Faulty Mass Air Flow (MAF) signal– Fualty Manifold Absolut Pressure (MAP) signal Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty oxygen sensor or circuit fault– Exhaust leak near sensor– Low fuel pressure– Large vacuum leak on engine– Contaminated fuel Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Rear Secondary HO2S Bank 1 Sensor 2– Rear Secondary HO2S Bank 1 Sensor 2 harness is open or shorted– Rear Secondary HO2S Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or
Possible causes – Faulty Rear Secondary HO2S Bank 1 Sensor 2– Rear Secondary HO2S Bank 1 Sensor 2 harness is open or shorted– Rear Secondary HO2S Bank 1 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2270 Information for specific makes P2270 DODGEP2270 CHRYSLERP2270 JEEPP2270 HONDAP2270 ACURAP2270 FORDP2270 HYUNDAIP2270 ISUZUP2270 KIAP2270 LEXUSP2270 TOYOTAP2270 MAZDAP2270 SUZUKIP2270 VOLKSWAGENP2270 AUDI