LEMON Manuals
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Mitsubishi
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2003
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Eclipse RS, Standard
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Controls - Self-Diagnostics - 2.4L
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Diagnostic Tests
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DTC P0456: EVAP Control System Small Leak Detected
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Probable Causes
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Probable Causes
Loose fuel cap.
Fuel cap relief pressure is incorrect.
Evaporative emission canister seal is faulty.
Fuel tank, purge line or vapor line seal failed.
Evaporative emission ventilation solenoid valve failed.