Evaporative Emission Control System Malfunction
2000-2005 Mitsubishi Eclipse 2.4L I4
Description
General EVAP system malfunction. The EVAP system captures fuel vapors and prevents them from escaping to the atmosphere.
Symptoms
- Check Engine Light
- Fuel smell
- Failed emissions test
Common Causes
- Loose or missing gas cap (most common)
- Cracked EVAP hose
- Faulty purge valve
- Faulty vent valve
- Charcoal canister saturated
- Leak in fuel tank or filler neck
Diagnostic Steps
- Check gas cap seal and tighten
- Perform EVAP smoke test
- Test purge valve
- Test vent valve
- Check EVAP hoses
- Inspect charcoal canister
Repair Notes
Start with gas cap - tighten and clear code. If returns, smoke test the EVAP system.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0440 on Other Vehicles
Mitsubishi 3000GT
1991-1999 3.0L V6
Mitsubishi 3000GT VR-4
1991-1999 3.0L Twin Turbo V6
Mitsubishi 3000GT VR-4
1991-1999 3.0L V6 Twin Turbo
Mitsubishi Colt JP
2002-2012 1.3L I4 4A90
Mitsubishi Colt JP
2002-2012 1.5L I4 4A91
Mitsubishi Diamante
1992-1996 3.0L V6
Mitsubishi Diamante
1997-2004 3.5L V6
Mitsubishi Eclipse
1990-1999 2.0L I4
Common Questions
What does code P0440 mean on a 2000-2005 Mitsubishi Eclipse?
P0440 stands for "Evaporative Emission Control System Malfunction". General EVAP system malfunction. The EVAP system captures fuel vapors and prevents them from escaping to the atmosphere.
What are the symptoms of P0440 on a Mitsubishi Eclipse?
Common symptoms of P0440 include: Check Engine Light, Fuel smell, Failed emissions test.
What causes P0440 on a 2000-2005 Mitsubishi Eclipse?
Common causes of P0440 include: Loose or missing gas cap (most common), Cracked EVAP hose, Faulty purge valve, Faulty vent valve, Charcoal canister saturated, Leak in fuel tank or filler neck.