On-Vehicle Inspection

NOTE: "Cold" and "Hot" in these sentences express the temperature of the coils themselves. "Cold" is from -10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).

INSPECT IGNITION COIL (WITH IGNITER) AND SPARK TEST
Check that the spark occurs.
1. Remove the ignition coils (with igniter). (see REMOVAL )
2. Remove the spark plugs.
3. Install the spark plugs to each ignition coil (with igniter), and connect the ignition coil (with igniter) connector.
4. Disconnect the 8 injector connectors.
5. Ground the spark plug.
6. Check that spark occurs while engine is being cranked.
  NOTE: To prevent gasoline from being injected out of injectors during this test, crank the engine for no more than 5 to 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
7. Using a 16 mm plug wrench, install the spark plugs.
  Torque: 17.5 N.m (180 kgf.cm, 13 ft.lbf)
8. Reinstall the ignition coils (with igniter). (see INSTALLATION )

INSPECT SPARK PLUGS

Remove the ignition coils (with igniter). (see REMOVAL )
Using a 16 mm plug wrench, remove the spark plugs.

Fig 2: Removing Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Clean the spark plugs.
If the electrode has traces of wet carbon, allow it to dry and then clean with a spark plug cleaner.
1. Air pressure: Below 588 kPa (6 kgf/cm ² , 85 psi)
2. Duration: 20 seconds or less
HINT:

If there are traces of oil, remove it with gasoline before using the spark plug cleaner.

Fig 3: Cleaning Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the spark plug for thread damage and insulator damage.

If abnormal, replace the spark plug.

RECOMMENDED SPARK PLUG

DENSO made	SK20R11
NGK made	IFR6A11

Fig 4: Checking Spark Plug For Thread Damage And Insulator Damage

Adjust the spark plug electrode gap.
Electrode gap: 1.0 to 1.1 mm (0.039 to 0.043 in.)

Fig 5: Adjusting Spark Plug Electrode Gap
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Using a 16 mm plug wrench, install the spark plugs.
Torque: 17.5 N.m (180 kgf.cm, 13 ft.Ibf)
Reinstall the ignition coils (with igniter). (see INSTALLATION )