P0131 MITSUBISHI Cylinder 1-4 Heated Oxygen Front Sensor Circuit Low Voltage

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– Exhaust gas leaks Tech description Replacing the O2 Sensor 1 usually takes…

P2195 MITSUBISHI O2 Sensor Signal Stuck Lean 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 Symptoms – Engine Light ON (or Service Engine Soon Warning…

P0151 MITSUBISHI Cylinder 2-3 Front Heated Oxygen Sensor Circuit Low Voltage

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 may be faulty– Exhaust gas leaks Tech description Replacing the Front Heated Oxygen Sensor Bank…

P0154 MITSUBISHI Cylinder 2-3 Heated Oxygen (front) Sensor No Activity Detected

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 may be faulty– Exhaust gas leaks Tech description Replacing the Front Heated Oxygen Sensor Bank…

P0153 MITSUBISHI Cylinder 2-3 Front Heated Oxygen Sensor Circuit Slow Response

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– Exhaust gas leaks Tech description Replacing the Front Heated Oxygen Sensor Bank 2 usually takes…

P0152 MITSUBISHI Cylinder 2-3 Heated Oxygen Front Sensor Circuit High Voltage

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– Inappropriate fuel pressure– Faulty fuel injectors Tech description Replacing the Front Heated Oxygen Sensor Bank…

P0172 MITSUBISHI System Too Rich- Cylinders 1-4

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 obd code mean? – Fuel injection system does not operate properly.– The amount of mixture ratio compensation is too large. (The mixture ratio is too rich.)…

P0451 MITSUBISHI EVAP System Pressure Sensor Range/Performance

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 obd code mean? – An improper voltage signal from EVAP control system pressure sensor is sent…

P1025 MITSUBISHI Exhaust Engine Oil Control Valve Circuit

Possible causes – Faulty exhaust engine oil control valve circuit– Exhaust engine oil control valve harness is open or shorted– Exhaust engine oil control valve circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1025 MITSUBISHI OBD Code Description The exhaust engine oil control valve change the phase angle…

P0489 MITSUBISHI EGR Stepper Motor Circuit Malfunction Ground Short

Possible causes – Faulty Exhaust Gas Recirculation (EGR) Solenoid– Exhaust Gas Recirculation (EGR) Solenoid harness is open or shorted– Exhaust Gas Recirculation (EGR) Solenoid circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0489 MITSUBISHI OBD Code Description The Engine Control Module (ECM) does not detect voltage on the…