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. Using a 16 mm (0.63 in.) plug wrench, remove the spark plugs.
3. Install the spark plugs to each ignition coils (with igniter), and connect the ignition coil connectors.
4. Disconnect the 4 injector connectors.
5. Ground the spark plugs.
6. Check if spark occurs while engine is being cranked.
  NOTE: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 5 -10 seconds at time.
  
  If the spark does not occur, do the test as follows:
  
  Fig 1: Identifying Flow Chart Of Test When Spark Does Not Occur
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
7. Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.
  Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
8. Install the ignition coils (with igniter).
  1. (See INSTALLATION )

INSPECT SPARK PLUGS

Remove the ignition coils (with igniter).
1. (See REMOVAL )
Using a 16 mm (0.63 in.) plug wrench, remove the spark plugs.

Fig 2: Removing Spark Plugs Using A 16 Mm (0.63 In.) Plug Wrench
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:

RECOMMENDED SPARK PLUG 1ZZ-FE

DENSO made	SK16R11
NGK made	IFR5A11

RECOMMENDED SPARK PLUG 2ZZ-GE

DENSO made	SK20R11
NGK made	IFR6A11

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Adjust electrode gap.
1. Carefully bend the outer electrode to obtain the correct electrode gap.
2. Electrode gap: 1.1 mm (0.043 in.)
Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.
1. Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)
Install the ignition coils (with igniter).
1. (See INSTALLATION )
  
  Fig 5: Adjusting Electrode Gap
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT CAMSHAFT POSITION SENSOR

Disconnect the camshaft position sensor connector.

Using an ohmmeter, measure the resistance between terminals.

RESISTANCE BETWEEN TERMINALS

Cold	835 - 1,400 Ω
Hot1	1,060 - 1,645 Ω

If the resistance is not as specified, replace the camshaft position sensor.

Connect the camshaft position sensor connector.

Fig 6: Inspecting Camshaft Position Sensor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002