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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 132 (Engine Control System - Theory & Operation) >> Emission Systems & Sub-Systems >> Evaporative Emission Control >> EVAP Canister Vent Valve

EVAP Canister Vent Valve

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

The EVAP canister vent valve controls the flow of fresh air that passes through the EVAP canister. The vent valve is normally open. The PCM will command the EVAP canister vent valve closed during some EVAP tests, in order to seal the EVAP system for leak diagnosis.

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