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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System & Fuel System - 1.8L (Lay) - Troubleshooting & Diagnosis) >> Electronic Ignition (EI) System Diagnosis >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT:
    • Do not perform this diagnostic procedure if you were not sent here from a misfire DTC or the Engine Cranks but Does Not Run diagnostic.
    • The following tests must be performed on each ignition coil.
  1. Ignition OFF, remove the ignition coil assembly.
  2. Verify the ignition coil spark plug boot and terminal do not have carbon tracking or corrosion.
    • If the condition exists, replace the ignition coil and spark plug.
  3. Connect a J 26792  Spark Tester or an equivalent to the spark plug boot of the ignition coil assembly. See Special Tools .
  4. Connect the J 26792  to ground. See Special Tools .
  5. Connect the coil assembly electrical connector.
  6. Crank the engine and observe the J 26792  . See Special Tools . There should be a crisp blue spark.
    • If there is no spark, switch the coil with one that has good spark. Test again with the J 26792  for spark. See Special Tools . If still no spark, replace the PCM.
  7. If all tests are normal, replace the ignition coil.
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