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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1850 (Engine Controls And Fuel - 2.4L (Lat) - Troubleshooting & Diagnosis) >> Fuel Injector Diagnosis (w/CH47976) >> Component Testing >> Fuel Injector Coil Test >> AFIT Test Procedure

AFIT Test Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  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, replace the injector(s).