Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2000 Mitsubishi MonteroFACTORY OEM SERVICE PROCEDURE
Engine Performance DTCS
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| P0100 | Volume Airflow (VAF) Sensor Circuit Malfunction |
| P0105 | Barometric Pressure (BARO) Sensor Circuit Malfunction |
| P0110 | Intake Air Temperature (IAT) Sensor Circuit Malfunction |
| P0115 | Engine Coolant Temperature (ECT) Sensor Malfunction |
| P0120 | Throttle Position (TP) Sensor Circuit Malfunction |
| P0125 | Excessive Time To Enter Closed Loop Fuel Control |
| P0130 | Front Heated Oxygen Sensor (HO2S) Circuit Malfunction |
| P0135 | Front Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction |
| P0136 | Rear Heated Oxygen Sensor (HO2S) Circuit Malfunction |
| P0141 | Rear Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction |
| P0150 | Front Heated Oxygen Sensor (HO2S) Circuit Malfunction |
| P0155 | Front Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction |
| P0156 | Rear Heated Oxygen Sensor (HO2S) Circuit Malfunction |
| P0161 | Rear Heated Oxygen Sensor (HO2S) Heater Circuit Malfunction |
| P0170 | Fuel Trim Malfunction |
| P0173 | Fuel Trim Malfunction |
| P0201 | Fuel Injector Cylinder No. 1 Circuit Malfunction |
| P0202 | Fuel Injector Cylinder No. 2 Circuit Malfunction |
| P0203 | Fuel Injector Cylinder No. 3 Circuit Malfunction |
| P0204 | Fuel Injector Cylinder No. 4 Circuit Malfunction |
| P0205 | Fuel Injector Cylinder No. 5 Circuit Malfunction |
| P0206 | Fuel Injector Cylinder No. 6 Circuit Malfunction |
| P0300 | Random Misfire Detected |
| P0301 | Cylinder No. 1 Misfire Detected |
| P0302 | Cylinder No. 2 Misfire Detected |
| P0303 | Cylinder No. 3 Misfire Detected |
| P0304 | Cylinder No. 4 Misfire Detected |
| P0305 | Cylinder No. 5 Misfire Detected |
| P0306 | Cylinder No. 6 Misfire Detected |
| P0335 | Crankshaft Position (CKP) Sensor Circuit Malfunction |
| P0340 | Camshaft Position (CMP) Sensor Circuit Malfunction |
| P0400 | Exhaust Gas Recirculation (EGR) Flow System Malfunction |
| P0403 | Exhaust Gas Recirculation (EGR) Solenoid Malfunction |
| P0420 | Catalyst Efficiency Below Threshold (Federal) |
| P0421 | Catalyst Efficiency Below Threshold (California) |
| P0431 | Catalyst Efficiency Below Threshold (California) |
| P0442 | Evaporative Emission (EVAP) Control System Leak Detected |
| P0443 | Evaporative Emission (EVAP) System Purge Solenoid Circuit Malfunction |
| P0446 | Evaporative Emission (EVAP) Control System Ventilation Control Malfunction |
| P0450 | Evaporative Emission (EVAP) System Pressure Sensor Malfunction |
| P0455 | Evaporative Emission (EVAP) Control System Large Leak Detected |
| P0500 | Vehicle Speed Sensor (VSS) Circuit Malfunction |
| P0505 | Idle Control System Malfunction |
| P0510 | Closed Throttle Position Switch Malfunction |
| P0551 | Power Steering Pressure (PSP) Sensor Circuit Performance |
| P0705 | Transmission Range Sensor Circuit Malfunction |
| P1400 | Manifold Differential Pressure (MDP) Sensor Circuit Malfunction |
| P1600 | Serial Communication Link Malfunction |
| P1791 | Engine Coolant Temperature Level Input To TCM |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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