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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 1.8L (LUW, LWE) - DTC P0010 To DTC P0442) >> Diagnostic Information and Procedures >> DTC P0411: Secondary Air Injection System >> Circuit/System Testing >> Secondary Air Injection System Pressure Not In Range

Secondary Air Injection System Pressure Not In Range

WARNING: This page is about a different variant/trim than selected.
  1. Verify the following conditions do not exist with the secondary air injection shutoff and check valve:
    • Hoses/pipes restricted or blocked
    • Hoses/pipes leaking or disconnected
    • Damaged secondary air injection shutoff and check valve
    • Restricted or blocked cylinder head secondary air injection inlet ports and passages
    • If a condition is located 

      Repair or replace the affected component as necessary.

    • If all components test normal 
  2. Disconnect the secondary air injection hoses/pipe from the Q29 Secondary Air Injection Solenoid Valve.
  3. Ignition ON, command the Secondary Air Injection Pump Relay ON with a scan tool.
  4. Verify airflow to the Q29 Secondary Air Injection Solenoid Valve.
    • If no airflow 

      Replace the G21 Secondary Air Injection Pump.

    • If airflow 
  5. Disconnect the appropriate Q29 Secondary Air Injection Solenoid Valve from the engine.
  6. Connect the harness connector at the Q29 Secondary Air Injection Solenoid Valve.
  7. Connect the secondary air injection pipe between the Q29 Secondary Air Injection Solenoid Valve and the G21 Secondary Air Injection Pump.
  8. Ignition ON, command the Secondary Air Injection System Active with a scan tool. Verify there is airflow through the valve.
    • If no airflow 

      Replace the Q29 Secondary Air Injection Solenoid Valve

    • If airflow 
  9. Replace the G21 Secondary Air Injection Pump.
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