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Home >> Chevrolet >> 2010 >> Impala Police >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls And Fuel - 3.5L - Troubleshooting And Diagnosis) >> Fuel Injector Diagnosis (With CH47976) >> Component Testing >> AFIT Test Procedure

AFIT Test Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Turn OFF all accessories.
  2. Turn OFF the ignition.
  3. Install the AFIT. Refer to the AFIT User Guide.
  4. Turn ON the AFIT and select the vehicle.
  5. Turn ON the ignition and perform the Injector Test.
  6. View the test results.
    • If any injector exceeds the recommended tolerance, perform the applicable procedure:

      Perform the Fuel Injector Balance Test.

    • If any injector still exceeds the recommended tolerance, replace the fuel injector.
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