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Home >> Buick >> 2003 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0446: EVAP Vent System Performance >> Test Description
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Test Description

The number below refers to the step number in the diagnostic procedures.

  1. 5

    This test step determines if the failure is present or intermittent.
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