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Home >> Buick >> 2002 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.1L Engine >> Diagnostic Tests >> DTC P0442: EVAP System - Leak Detected >> Diagnostic Aids

Diagnostic Aids

The EVAP system tests run when the engine is first started and meets the Conditions for Running the DTC. See CONDITIONS FOR RUNNING DTC . To aid in locating intermittent leaks, use the J-41413 EVAP Pressure and Purge Station to pressurize the EVAP system. Move all EVAP components while testing with the J-41416 Ultrasonic Leak Detector.

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