P0171 MITSUBISHI System Too Lean Cylinders 1-4

Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection Tech description If the P0171 is combined with the P0174 code, it’s very likely that the problem…

P0173 MITSUBISHI Fuel Trim Malfunction Bank 2

Possible causes – Intake air leaks– Faulty front heated oxygen sensor– Ignition misfiring– Faulty fuel injectors– Exhaust gas leaks– Incorrect fuel pressure– Lack of fuel– Faulty Mass Air Flow (MAF) sensor– Incorrect Positive Crankcase Ventilation (PCV) hose connection When is the obd code mean? – Fuel injection system does not operate properly.– The amount of…

P0010 MITSUBISHI Intake Engine Oil Control Valve Circuit

Possible causes – Intake Engine Oil Control Valve circuit is open or shorted– Intake Engine Oil Control Valve circuit poor electrical connection– Faulty intake engine oil control valve– Faulty Engine Control Module (ECM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light)

P0128 MITSUBISHI Coolant Thermostat Malfunction

Possible causes – Leaking or stuck open thermostat– Low engine coolant level– Insufficient warm up time– Faulty engine coolant temperature sensor– Engine coolant temperature sensor harness is open or shorted– Engine coolant temperature sensor circuit poor electrical connection Tech description If cooling system is not leaking and the fluid level is OK, replacing the thermostat…

P0604 MITSUBISHI Internal Control Module RAM

Possible causes – Loose or poor battery terminal connection– Low battery charge– ECM power supply circuit is open or shorted– ECM Programing– Faulty ECM Tech description Check the ECM fuse, if fuse is OK try erasing the code first and if the code comes back you may have to reprogram or replaced the ECM. When…

P0603 MITSUBISHI EEPROM Malfunction

Possible causes – Loose or poor battery terminal connection– Low battery charge– ECM power supply circuit is open or shorted– ECM Programing– Faulty ECM Tech description Start by charging the vehicles battery and clean terminal, once the battery is charged and the terminals are clean and secure, erase code. If the code comes back ON…

P2107 MITSUBISHI Throttle Actuator Control Module Processor

Possible causes – Foulty Throttle Body– Faulty Throttle Actuator Control Module– Throttle Actuator Control Module harness is open or shorted– Throttle Actuator Control Module circuit poor electrical connection– Faulty Powertrain Control Module (PCM) Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P2107 MITSUBISHI OBD Code Description The Electronic Throttle Control (ETC) control…

P1129 MITSUBISHI Closed Loop Fueling Not Achieved Bank 2

Possible causes – Fuel delivery system– Engine Coolant Temperature (ECT) sensor or wiring connectors– MAP sensor or wiring connectors– O2 sensor wiring or connectors– Engine mechanical system Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1129 MITSUBISHI OBD Code Description The Powertrain Control Module (PCM) detects a condition where the vehicle has…

P0826 MITSUBISHI Up and Down Shift Switch Circuit

Possible causes – Faulty Up and Down Shift Switch– Up and Down Shift Switch harness is open or shorted– Up and Down Shift Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)