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Home >> Mitsubishi >> 1994 >> Precis L4-1468cc 1.5L SOHC >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures
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Symptom Related Diagnostic Procedures

SYMPTOM / PROBABLE CAUSE

Engine will not start or is hard to start
- Vacuum hose disconnected or damaged.
- The Exhaust Gas Recirculation Valve is not closed.
- Malfunction of the Canister Purge Solenoid Valve.

Rough Idle or engine stalls
- The Exhaust Gas Recirculation Valve is not closed.
- Vacuum hose disconnected or damaged.
- Malfunction of the Positive Crankcase Ventilation Valve.
- Malfunction of the Canister Purge Solenoid Valve.

Engine Hesitates or poor acceleration
- Malfunction of the Exhaust Gas Recirculation System.

Excessive oil consumption
- Positive Crankcase Ventilation line plugged.

Poor fuel mileage
- Malfunction of the Exhaust Gas Recirculation System.
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