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.
1997 Mitsubishi Eclipse Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes - 2.4L
- Introduction
- Self-Diagnostic System
- Diagnostic Trouble Codes (DTCS)
- Terminal Identification
- Diagnostic Tests
- Circuit Tests
- DTC P0100 - Volume Airflow (VAF) Circuit Malfunction
- DTC P0105 - Barometric Pressure Circuit Malfunction
- DTC P0110 - Intake Air Temperature (IAT) Circuit Malfunction
- DTC P0115 - Engine Coolant Temperature (ECT) Circuit Malfunction
- DTC P0120 - Throttle Position (TP) Circuit Malfunction
- DTC P0125 - Excessive Time To Enter Closed Loop Fuel Control
- DTC P0130 - Front Heated Oxygen Sensor (Ho2S) Circuit Malfunction
- DTC P0135 - Front Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction
- DTC P0136 - Rear Heated Oxygen Sensor (Ho2S) Circuit Malfunction
- DTC P0141 - Rear Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction
- DTC P0170 - Fuel Trim Malfunction
- DTC P0201, DTC P0202, DTC P0203 Or DTC P0204 - Injector No. 1, 2, 3 Or 4 Circuit Malfunction
- DTC P0300 - Random Misfire Detected
- DTC P0301, DTC P0302, DTC P0303 Or DTC P0304 - Cylinder No. 1, 2, 3 Or 4 Misfire Detected
- DTC P0335 - Crankshaft Position (CKP) Sensor Circuit Malfunction
- DTC P0340 - Camshaft Position (CMP) Sensor Circuit Malfunction
- DTC P0400 - Exhaust Gas RECIRCULATION (EGR) Flow Malfunction
- DTC P0403 - Exhaust Gas RECIRCULATION (EGR) Flow Malfunction
- DTC P0420 - Catalytic Converter Efficiency Below Threshold
- DTC P0442 - Evaporative (EVAP) Control System Leak Detected
- DTC P0443 - Evaporative (EVAP) Control System Purge Control Valve Circuit Malfunction
- DTC P0446 - Evaporative (EVAP) Control System Vent Control Malfunction
- DTC P0450 - Evaporative (EVAP) Emission Control System Pressure Sensor Malfunction
- DTC P0500 - Vehicle Speed Sensor (VSS) Malfunction
- DTC P0505 - Idle Control System Malfunction
- DTC P0510 - Closed Throttle Position (TP) Switch Malfunction
- DTC P0551 - Power Steering Pressure (PSP) Sensor Circuit Range/Performance
- DTC P0705 - Transmission Range Sensor Circuit Malfunction A/T)
- DTC P1400 - Manifold Differential Pressure (MDP) Sensor Circuit Malfunction
- DTC P1500 - Generator Fr Terminal Circuit Malfunction
- DTC P1600 - Serial Communication Link Malfunction
- DTC P1715 - Pg Assembly Malfunction
- DTC P1750 - Solenoid Assembly Malfunction
- DTC P1791 - Engine Coolant Temperature Level Input Circuit To TCM Malfunction
- Summary
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.