Category: OBDii Powertrain Codes

P0098 Intake Air Temperature Sensor 2 Circuit High Voltage Possible causes – Faulty Intake Air Temperature sensor– Intake Air Temperature sensor harness is open or shorted– Intake Air Temperature sensor circuit poor electrical connection What about the obd code? The Engine Control Module (ECM) has detected a high voltage condition on the Intake Air Temperature…

P0099 Intake Air Temperature Sensor 2 Circuit Intermittent/Erratic Possible causes – Faulty Intake Air Temperature sensor– Intake Air Temperature sensor harness is open or shorted– Intake Air Temperature sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0099 Description The Intake Air Temperature (IAT) sensor contains a semiconductor…

P0100 Mass Air Flow or Volume Air Flow Sensor Circuit Possible causes – Faulty mass air flow sensor– Intake air leaks– Dirty mass air flow sensor– Dirty mass air filter– Mass air flow sensor harness is open or shorted– Mass air flow sensor circuit poor electrical connection Tech description Before replacing the mass air flow…

P0101 Mass Air Flow Circuit Range/Performance Possible causes – Faulty mass air flow sensor– Intake air leaks– Dirty mass air flow sensor– Dirty mass air filter– Mass air flow sensor harness is open or shorted– Mass air flow sensor circuit poor electrical connection Tech description Before replacing the mass air flow sensor, try replacing the…

P0087 Fuel Rail System Pressure Too Low Possible causes – Faulty fuel pump– Blocked fuel filter– Faulty fuel pressure sensor– Fuel pressure sensor harness is open or shorted– Fuel pressure sensor electrical circuit poor connection– Faulty Fuel injector What about the obd code? The Engine Control Module (ECM) has determined that the fuel rail pressure…

P0088 Fuel Rail System Pressure Too High Possible causes – Faulty fuel pump– Blocked fuel filter– Faulty fuel pressure sensor– Fuel pressure sensor harness is open or shorted– Fuel pressure sensor electrical circuit poor connection– Faulty Fuel injector What about the obd code? The Engine Control Module (ECM) has determined that the fuel rail pressure…

P0089 Fuel Rail Pressure Performance Possible causes – Faulty fuel pressure regulator– Fuel pressure regulator harness is open or shorted– Fuel pressure regulator electrical circuit poor connection– Faulty fuel pressure sensor What about the obd code? Fuel rail pressure greater than 1450psi over desired rate Symptoms – Engine Light ON (or Service Engine Soon Warning…

P0090 Fuel Pressure Regulator Control Circuit Possible causes – Faulty fuel pressure sensor– Fuel pressure sensor harness is open or shorted– Fuel pressure sensor electrical circuit poor connection– Faulty Engine Control Module (ECM) What about the obd code? If the current is outside of the expected range, DTC P0090 will set. Symptoms – Engine Light…

P0091 Fuel Pressure Regulator Solenoid 1 Control Circit Low Voltage Possible causes – Faulty fuel pressure regulator– Fuel pressure regulator harness is open or shorted– Fuel pressure regulator electrical circuit poor connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0092 Fuel Quantity Solenoid Short Circuit Possible causes – Faulty fuel pressure solenoid– Fuel pressure solenoid harness is open or shorted– Fuel pressure solenoid electrical circuit poor connection What about the obd code? The Engine Control Module (ECM) has detected excessive current in Fuel Quantity Solenoid circuit Symptoms – Engine Light ON (or Service Engine…

P0093 Fuel System Large Leak Detected Possible causes – Fuel system internal leak– Fuel supply pump or injector(s)– Faulty pressure limiter valve– Faulty fuel pressure sensor What about the obd code? Fuel rail pressure lower than expected Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0094 Fuel System Leak Detected Small Leak Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0094 Description Fuel System Leak Detected Small Leak is the generic definition for the P0094.

P0095 Intake Air Temperature Sensor 2 Circuit Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0095 Description Intake Air Temperature Sensor 2 Circuit is the generic definition for the P0095;

P0086 Exhaust Valve Control Solenoid Circuit High Bank 2 Possible causes – Faulty Exhaust Valve Control Solenoid– Exhaust Valve Control Solenoid harness is open or shorted– Exhaust Valve Control Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0074 Ambient Air Temperature Sensor Circuit Intermittent Possible causes – Faulty ambient air temperature sensor– Ambient air temperature sensor harness is open or shorted– Ambient air temperature sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0075 Intake Valve Control Solenoid Circuit Bank 1 Possible causes – Faulty Intake Valve Control Solenoid Bank 1– Intake Valve Control Solenoid Circuit Bank 1 harness is open or shorted– Intake Valve Control Solenoid Circuit Bank 1 circuit poor electrical connection What about the obd code? An improper voltage is sent to the Engine Control…

P0076 Intake Valve Control Solenoid Circuit Low Bank 1 Possible causes – Faulty Intake Valve Control Solenoid Bank 1– Intake Valve Control Solenoid Circuit Bank 1 harness is open or shorted– Intake Valve Control Solenoid Circuit Bank 1 circuit poor electrical connection What about the obd code? An improper voltage is sent to the Engine…

P0077 Intake Valve Control Solenoid Circuit High Bank 1 Possible causes – Faulty Intake Valve Control Solenoid Bank 1– Intake Valve Control Solenoid Circuit Bank 1 harness is open or shorted– Intake Valve Control Solenoid Circuit Bank 1 circuit poor electrical connection What about the obd code? An improper voltage is sent to the Engine…

P0078 Exhaust Valve Timing Control Magnet Retarder Circuit Bank 1 Possible causes – Faulty Exhaust Valve Timing Control Magnet Retarder– Exhaust Valve Timing Control Magnet Retarder harness is open or shorted– Exhaust Valve Timing Control Magnet Retarder circuit poor electrical circuit connector What about the obd code? An improper voltage is sent to the Engine…