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Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (Engine Controls And Fuel - 1.4L (LUJ LUV) - DTC P0010 To DTC P0246) >> Diagnostic Information and Procedures >> DTC P0068 or P1101: Air Flow >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

You must perform the Circuit/System Verification before proceeding with Circuit/System Testing.

  1. Verify the integrity of the entire air induction system by verifying that none of the following conditions exist:
    • Any damaged components
    • Improper operation of turbocharger wastegate actuator or bypass valve; where equipped
    • Improperly installed components
    • Collapsed, restricted, or damaged components
    • Loose clamps, cracks, or other damage
    • An air flow restriction
    • Restricted air filter
    • Splits, kinks, leaks, or improper connections at the vacuum hoses
    • Vacuum leaks at the intake manifold, MAP sensor, and throttle body
    • Water intrusion
    • Any snow or ice buildup, in cold climates
    • Contamination of the MAF sensor element
    • Missing, restricted, or leaking exhaust components-Refer to Symptoms - Engine Exhaust for further diagnosis.
    • If a condition is found 

      Repair or replace component as appropriate.

    • If no condition is found 
  2. Test the engine for a mechanical condition. Refer to Symptoms - Engine Mechanical for diagnosis.
    • If a condition is found 

      Repair or replace component as appropriate.

    • If no condition is found 
  3. All OK
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