Possible causes – Faulty Engine Oil Temperature sensor– Engine Oil Temperature sensor harness is open or shorted– Engine Oil Temperature sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0196 INFINITI Description The

Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection Tech notes It’s a very common problem with Infiniti

Possible causes – Faulty Evaporative Emission (EVAP) Purge Solenoid Control– Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted– Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection When is the code detected? An excessively low voltage

Possible causes – Faulty Evaporative Emission System (EVAP) Pressure sensor– Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted– Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection When is the code detected? An excessively low voltage

Possible causes – Faulty Evaporative Emission System (EVAP) Pressure Sensor– Evaporative Emission System (EVAP) Pressure sensor harness is open or shorted– Evaporative Emission System (EVAP) Pressure sensor circuit poor electrical connection– Faulty Engine Control Module (ECM) When is the code

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 When is the code detected? An improper voltage

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 poor electrical circuit connector When is the code detected? An improper voltage is

Possible causes – Faulty exhaust valve timing control solenoid valve– Exhaust valve timing control solenoid valve harness is open or shorted– Exhaust valve timing control solenoid valve circuit poor electrical connection– Faulty Crankshaft Position Sensor (POS)– Faulty Camshaft Position Sensor

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

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

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

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

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

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks–

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Intake air leaks may be faulty– Exhaust gas leaks– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection–

Possible causes – Faulty Front Heated Oxygen Sensor Bank 2– Intake air leaks may be faulty– Exhaust gas leaks– Front Heated Oxygen Sensor Bank 2 harness is open or shorted– Front Heated Oxygen Sensor Bank 2 circuit poor electrical connection–

Possible causes – Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure – Faulty Mass Air Flow (MAF) sensor When is the code detected? – Fuel injection system does not operate properly.– The