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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 207 (Engine Control System - Self-Diagnostics) >> Diagnostic Tests >> DTC P0441: EVAP System No Flow During Purge >> Conditions for Setting the DTC

Conditions for Setting the DTC

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 pressure indicated in EVAP canister and fuel tank does not drop when EVAP canister purge valve is ON. Or, pressure indicated in EVAP canister remains very low when compared to atmospheric pressure when EVAP canister purge solenoid valve is OFF.

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