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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 127 (Engine Controls - System & Component Testing) >> Ignition System >> Electronic Ignition System Diagnosis (2.2L) >> Test Description
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Test Description

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2002 Saturn Vue, 2002 Pontiac Montana, 2002 Pontiac Aztek, 2002 Oldsmobile Silhouette, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to step numbers in diagnostic procedure.

  1. 4

    Repair cause of malfunctioning spark plugs before replacing.
  2. 5

    Inspect for basic engine malfunction like low compression, burnt valves, worn timing chain and worn gears, etc.
  3. 18

    Any time CKP sensor is removed crankshaft position variation learn procedure must be performed.
  4. 22

    Replacement PCM must be reprogrammed and CKP system variation learn procedure must be performed.