Category: OBDii Powertrain Codes

P2200 Nitrogen Oxides (NOx) Sensor Circuit (Bank 1) OBD Code: System: Subsystem:  P2200 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Nitrogen Oxides (NOx) Sensor Circuit (Bank 1) Location: Analysis: Possible Causes:  Bank 1  Circuit Issue   Tech description:

P2201 Nitrogen Oxides (NOx) Sensor Circuit Range / Performance (Bank 1) OBD Code: System: Subsystem:  P2201 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Nitrogen Oxides (NOx) Sensor Circuit Range / Performance (Bank 1) Location: Analysis: Possible Causes:  Bank 1  Out of Expected Range   Tech description:

P2202 Nitrogen Oxides (NOx) Sensor Circuit Low (Bank 1) OBD Code: System: Subsystem:  P2202 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Nitrogen Oxides (NOx) Sensor Circuit Low (Bank 1) Location: Analysis: Possible Causes:  Bank 1  End of Range – Circuit Lower Than Expected   Tech description:

P2203 Nitrogen Oxides (NOx) Sensor Circuit High (Bank 1) OBD Code: System: Subsystem:  P2203 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Nitrogen Oxides (NOx) Sensor Circuit High (Bank 1) Location: Analysis: Possible Causes:  Bank 1  End of Range – Circuit Higher Than Expected   Tech description:

P2196 O2 Sensor Signal Stuck Rich Bank 1 Sensor 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Vacuums leaks…

P2197 Oxygen Air/Fuel Sensor Signal Stuck Lean Bank 2 Sensor 1 Tech description Symptoms – Engine Light ON (or Service Engine Soon Warning Light) – Excessive Fuel Consumption

P2198 Oxygen (O2) Sensor Signal Biased / Stuck Rich (Bank 2 – Sensor 1) OBD Code: System: Subsystem:  P2198 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Oxygen (O2) Sensor Signal Biased / Stuck Rich (Bank 2 – Sensor 1) Location: Analysis: Possible Causes:  Oxygen Sensor – Bank 2 – Sensor 1  Stuck Rich…

P2199 Intake Air Temperature (Sensor 1 – 2) Correlation OBD Code: System: Subsystem:  P2199 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Intake Air Temperature (Sensor 1 – 2) Correlation Location: Analysis: Possible Causes:  Sensor 1     Tech description:

P2190 System Too Rich at Idle (Bank 2) OBD Code: System: Subsystem:  P2190 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: System Too Rich at Idle (Bank 2) Location: Analysis: Possible Causes:  Bank 2  Out of Expected Range – Too Rich   Tech description:

P2191 System Too Lean at Higher Load Bank 1 Possible causes – Leaking fuel injector or pressure regulator– High fuel pressure condition– Faulty front HO2S– Leak in exhaust system– MAF sensor faulty Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2191 Description In order to provide the best possible combination of drivability,…

P2192 System Too Rich at Higher Load Bank 1 Possible causes – Leaking fuel injector or pressure regulator– High fuel pressure condition– Faulty front HO2S– Leak in exhaust system– MAF sensor faulty Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2192 Description In order to provide the best possible combination of drivability,…

P2193 System Too Lean at Higher Load (Bank 2) OBD Code: System: Subsystem:  P2193 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: System Too Lean at Higher Load (Bank 2) Location: Analysis: Possible Causes:  Bank 2  Out of Expected Range – Too Lean   Tech description:

P2194 System Too Rich at Higher Load (Bank 2) OBD Code: System: Subsystem:  P2194 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: System Too Rich at Higher Load (Bank 2) Location: Analysis: Possible Causes:  Bank 2  Out of Expected Range – Too Rich   Tech description:

P2195 HO2S11 Sensor Signal Stuck Lean Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Vacuums leaks Symptoms – Engine Light…

P2189 System Too Lean at Idle (Bank 2) OBD Code: System: Subsystem:  P2189 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: System Too Lean at Idle (Bank 2) Location: Analysis: Possible Causes:  Bank 2  Out of Expected Range – Too Lean   Tech description:

P2185 Engine Coolant Temperature Sensor 2 Circuit High Possible causes – Low coolant level– Faulty Engine Coolant Temperature Sensor– Stuck or leaking thermostat– Engine Coolant Temperature Sensor harness is open or shorted– Engine Coolant Temperature Sensor circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning…

P2186 Engine Coolant Temperature (ECT) (Sensor 2) Circuit Intermittent / Erratic OBD Code: System: Subsystem:  P2186 – (ASE)  Powertrain  Fuel and Air Metering Trouble Code Description: Engine Coolant Temperature (ECT) (Sensor 2) Circuit Intermittent / Erratic Location: Analysis: Possible Causes:  Sensor 2  Periodically Unstable Circuit   Tech description:

P2187 System Too Lean At Idle Bank 1 Possible causes – Leaking fuel injector or pressure regulator– High fuel pressure condition– Faulty front HO2S– Leak in exhaust system– MAF sensor faulty Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2187 Description In order to provide the best possible combination of drivability, fuel…

P2188 System Too Rich At Idle Bank 1 Possible causes – Leaking fuel pressure regulator– Leaking fuel injector What about the obd code? The average long term fuel trim values at idle are less than -30 percent for 10 seconds Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2188 Description The engine…