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Home >> Kia >> 2015 >> Optima Hybrid >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Ignition System - Optima HEV >> Repair Procedures >> On-Vehicle Inspection >> Spark Test
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Spark Test

  1. Disconnect the ignition coil connectors (A).
    Fig 1: Ignition Coil Connectors
    G08312676Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: When disconnecting the ignition coil connector, pull out the locking pin (A) and then pull out the connector while pressing the clip (B).
    Fig 2: Pulling Out Locking Pin & Ignition Coil Connector
    G08312677Courtesy of KIA MOTORS AMERICA, INC.
  2. Remove the ignition coils (A).
    Fig 3: Ignition Coils
    G08312678Courtesy of KIA MOTORS AMERICA, INC.
  3. Disconnect the injector connectors (A).
    Fig 4: Injector Connectors
    G08312679Courtesy of KIA MOTORS AMERICA, INC.
  4. Using a spark plug socket, remove the spark plug.
  5. Install the spark plug to the ignition coil.
  6. Ground the spark plug to the engine.
    Fig 5: Grounding Spark Plug To Engine
    G08312680Courtesy of KIA MOTORS AMERICA, INC.
  7. Check if spark occurs while engine is being cranked.
    NOTE: To prevent fuel being injected from injectors while the engine is being cranked, disconnect the injector connector. Crank the engine for no more than 5 ~ 10 seconds.
  8. Inspect all the spark plugs.
  9. Using a spark plug socket, install the spark plug.
  10. Reconnect the injector connectors.
  11. Install the ignition coils.

    Tightening torque: 

    3.9 ~ 5.9 N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3 lb-ft)

  12. Reconnect the ignition coil connectors.
Fig 6: Spark Test Work Flow Chart
G08312681Courtesy of KIA MOTORS AMERICA, INC.
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