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Home >> Chevrolet >> 2005 >> Aveo Base, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - 1.6L (L91) - DTC P0201 To DTC P0455 >> Diagnosis >> DTC P0446 >> Diagnostic Aids

Diagnostic Aids

An intermittent condition could be caused by a damaged EVAP vent housing, a temporary blockage at the EVAP vent valve inlet or a pinched vent hose. A blockage in the vent system will also cause a poor fuel fill problem.