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.
2003 Mitsubishi Lancer EvolutionFACTORY OEM SERVICE PROCEDURE
Engine Performance 2.0L Non-Turbo DTCS
ENGINE PERFORMANCE 2.0L NON-TURBO DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| P0101 | Volume Airflow Circuit Range/Performance Problem |
| P0102 | Volume Airflow Circuit Low Input |
| P0106 | Barometric Pressure Circuit Range/Performance Problem |
| P0107 | Barometric Pressure Circuit Low Input |
| P0108 | Barometric Pressure Circuit High Input |
| P0111 | Intake Air Temperature Circuit Range/Performance Problem |
| P0112 | Intake Air Temperature Circuit Low Input |
| P0113 | Intake Air Temperature Circuit High Input |
| P0116 | Engine Coolant Temperature Circuit Range/Performance Problem |
| P0117 | Engine Coolant Temperature Circuit Low Input |
| P0118 | Engine Coolant Temperature Circuit High Input |
| P0121 | Throttle Position Sensor Circuit Range/Performance Problem |
| P0122 | Throttle Position Sensor Circuit Low Input |
| P0123 | Throttle Position Sensor Circuit High Input |
| P0125 | Insufficient Coolant Temperature For Closed Loop Fuel Control |
| P0128 | Coolant Thermostat Malfunction |
| P0130 | Heated Oxygen Sensor Circuit (Sensor 1) |
| P0131 | Heated Oxygen Sensor Circuit Low Voltage (Sensor 1) |
| P0132 | Heated Oxygen Sensor Circuit High Voltage (Sensor 1) |
| P0133 | Heated Oxygen Sensor Circuit Slow Response (Sensor 1) |
| P0134 | Heated Oxygen Sensor Circuit No Activity Detected (Sensor 1) |
| P0135 | Heated Oxygen Sensor Heater Circuit (Sensor 1) |
| P0136 | Heated Oxygen Sensor Circuit (Sensor 2) |
| P0137 | Heated Oxygen Sensor Circuit Low Voltage (Sensor 2) |
| P0138 | Heated Oxygen Sensor Circuit High Voltage (Sensor 2) |
| P0139 | Heated Oxygen Sensor Circuit Slow Response (Sensor 2) |
| P0141 | Heated Oxygen Sensor Heater Circuit (Sensor 2) |
| P0171 | System Too Lean |
| P0172 | System Too Rich |
| P0181 | Fuel Temperature Sensor Circuit Range/Performance Problem |
| P0182 | Fuel Temperature Sensor Circuit Low Input |
| P0183 | Fuel Temperature Sensor Circuit High Input |
| P0201 | Injector No. 1 Circuit |
| P0202 | Injector No. 2 Circuit |
| P0203 | Injector No. 3 Circuit |
| P0204 | Injector No. 4 Circuit |
| P0300 | Random/Multiple Cylinder 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 |
| P0325 | Knock Sensor Circuit |
| P0335 | Crankshaft Position Sensor Circuit |
| P0340 | Camshaft Position Sensor Circuit |
| P0401 | EGR Flow Insufficient Detected |
| P0403 | EGR Control Circuit |
| P0421 | Warm Up Catalyst Efficiency Below Threshold |
| P0441 | Evaporative Emission Control System Incorrect Purge Flow |
| P0442 | Evaporative Emission Control System Leak Detected (Small Leak) |
| P0443 | Evaporative Emission Control System Purge Control Valve Circuit |
| P0446 | Evaporative Emission Control System Vent Control Circuit |
| P0451 | Evaporative Emission Control System Pressure Sensor Range/Performance |
| P0452 | Evaporative Emission Control System Pressure Sensor Low Input |
| P0453 | Evaporative Emission Control System Pressure Sensor High Input |
| P0455 | Evaporative Emission Control System Leak Detected (Gross Leak) |
| P0456 | Evaporative Emission Control System Leak Detected (Very Small Leak) |
| P0461 | Fuel Level Sensor Circuit Range/Performance Fuel Gauge Unit Circuit |
| P0500 | Vehicle Speed Sensor Circuit (M/T) |
| P0506 | Idle Control System RPM Lower Than Expected |
| P0507 | Idle Control System RPM Higher Than Expected |
| P0551 | Power Steering Pressure Sensor Circuit Range/Performance |
| P0554 | Power Steering Pressure Sensor Circuit Intermittent |
| P0662 | Generator FR Terminal Circuit Malfunction |
| P1400 | Manifold Differential Pressure Sensor Circuit Malfunction |
| P1603 | Battery Backup Circuit Malfunction |
Factory Service Tools
Use the Manual With the Right Hardware
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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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