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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 166 (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 2003 GMC Sonoma and 2003 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. 12 -  This step determines if excessive resistance is the cause for an inoperative AIR pump. Resistance of 2 ohms on this circuit can prevent the AIR pump from running.
  2. 14 -  This step determines if excessive resistance is the cause for an inoperative AIR pump. Resistance of 2 ohms on this circuit can prevent the AIR pump from running.
  3. 15 -  This step determines if the AIR system is operating normally.
  4. 17 -  This step inspects for a restriction in the engine vacuum supply to the AIR shut-off valve.
  5. 21 -  This step determines if the lack of air is caused by an open or a restriction in the AIR supply hose, or if an inoperative AIR shut-off valve is causing this condition. There should be a steady forceful flow of air from the AIR pump.
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