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Home >> Chevrolet >> 2007 >> Optra5 LS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 1.8L (LDA) >> Diagnostic Information and Procedures >> Idle Air Control (IAC) System Diagnosis >> Circuit/System Verification

Circuit/System Verification

  1. Engine idling at operating temperature. The engine speed should be within 200 RPM of the Desired Idle Speed.
  2. If the vehicle passes the Circuit/System Verification Test, then 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 list.
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