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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Engine Controls Self-Diagnostics - 2.2L) >> Diagnostic Tests >> DTC P0410: Secondary Air Injection >> Test Description

Test Description

WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic procedures.

  1. 16

    This step checks for a restriction in the engine vacuum supply to the AIR shut-off valve.

  2. 18

    This step determines if the lack of air is caused by an open in the AIR supply hose or a defective shut-off valve.
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