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Home >> Suzuki >> 2013 >> Grand Vitara Base >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Diagnostic Information and Procedures >> Ignition Spark Test
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Ignition Spark Test

  1. Remove spark plugs. Refer to Spark Plug Removal and Installation .
  2. Inspect spark plugs. Refer to Spark Plug Inspection .
    WARNING: If this test is performed without disconnecting the injector connectors, a spark from a plug may ignite fuel vapor coming out of the spark plug holes during the test, causing a fire or explosion.
    Be sure to disconnect the injector connectors from the injectors before performing this test.
    NOTE: For identification of each cylinder, refer to PRECAUTIONS FOR IDENTIFICATION OF CYLINDER .
  3. Disconnect injector connectors.
  4. Connect ignition coil connector (3) to ignition coil assembly.
  5. Connect spark plug (1) to ignition coil assembly (3), and ground spark plug.
  6. Crank engine and check if each spark plug produces sparks.
    Fig 1: Identifying Spark Plug, Ignition Coil Connector And Assembly
    G08895485Courtesy of SUZUKI OF AMERICA CORP.
  7. If any spark plug does not produce sparks, check ignition system. Refer to Ignition System Check .
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