On-Vehicle Inspection

Check that the spark occurs.

1. Remove the ignition coil (See REMOVAL  ).
2. Using a 16 mm plug wrench, remove the spark plug.
3. Install the spark plug to the ignition coil, and connect the ignition coil connector.
4. Ground the spark plug.
5. Check if spark occurs while engine is being cranked.
   NOTE: To prevent excess fuel being injected from the injectors during this test, do not crank the engine for more 5 - 10 seconds at a time.

   If the spark does not occur, do the test as follows:

   Fig 1: Spark Test Flow Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Using a 16 mm plug wrench, reinstall the spark plug.
   1. Torque: 18 N.m (180 kgf.cm, 13 ft.lbf) 
7. Reinstall the ignition coil (See INSTALLATION  ).

1. Remove the No.3 timing belt cover.
2. Remove the throttle body gasket (See REMOVAL  ).
3. Disconnect the high-tension cord set from the spark plugs.
   Fig 2: Identifying Correct Way Of Disconnecting High Tension Cords

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Disconnect the high-tension cords at the rubber boot.

   DO NOT pull on the cords.

   NOTE: Pulling on or bending the cords may damage the conductor inside.
4. Disconnect the high-tension cord set from the ignition coils.
   1. Using a screwdriver, lift up the lock claw and disconnect the holder from the ignition coils.
   2. Disconnect the high-tension cord at the grommet.

      DO NOT pull on the cord.

   NOTE:

   • Pulling on or bending the cords may damage the conductor inside.
   • Do not wipe any of the oil from the grommet after the high-tension cord is disconnected.