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Home › Chevrolet › 2007 › Optra LS, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 1.8L (LDA) › Diagnostic Information and Procedures › DTC P0660 › Circuit/System Verification

Circuit/System Verification

  1. Ignition ON, command the IMT valve solenoid ON and OFF with a scan tool. You should hear and feel an audible click.
  2. If the vehicle passes the Circuit/System Verification Test, operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records data list.
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