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Home >> Chevrolet >> 2017 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 29 (Engine Controls And Fuel - 1.8L (LKN) - DTC P0446 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P1426: Exhaust Gas Recirculation (EGR) Valve Internal Performance >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition ON/Vehicle in Service Mode.
  2. Verify DTC P1426 is not set.
    • If DTC P1426 is set 

      Replace the Q14 Exhaust Gas Recirculation Valve.

    • If DTC P1426 is not set 
  3. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  4. Verify DTC P1426 does not set.
    • If DTC P1426 sets 

      Replace the Q14 Exhaust Gas Recirculation Valve.

    • If the DTC does not set 
  5. All OK.
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