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 IGNITOR AND SPARK TEST
Check that the spark occurs.
1. Disconnect high-tension cords from spark plug.
2. Remove the spark plug.
3. Install the spark plug to each high-tension cord.
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: Ignitor & Spark Test Flow Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. Using a 16 mm plug wrench, install the spark plugs.
  1. Torque: 18 N.m (195 kgf.cm, 15 ft.lbf)
7. Reinstall the ignition coil with ignitor.
INSPECT HIGH-TENSION CORDS
1. Remove the air cleaner hose.
  
  Fig 2: Removing Air Cleaner Hose
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the high-tension cords at the rubber boot. Do not pull on the high-tension cords.
  NOTE: Pulling on or bending the cords may damage the conductor inside.
3. Using an ohmmeter, measure the high-tension cord resistance.
  
  Fig 3: Measuring High-Tension Cord Resistance
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Maximum resistance: 25 kΩ per cord
  If the resistance is greater than maximum, check the terminals.
  
  If necessary, replace the high-tension cord.
4. Reconnect and install the high-tension cords as shown in Fig 4.
  
  Fig 4: Installing High-Tension Cords
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT SPARK PLUGS

Disconnect the 3 high-tension cords.
Remove the 3 ignition coils.
Using a 16 mm plug wrench, remove the 6 spark plugs.

Fig 5: Removing Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Clean the spark plugs.

Fig 6: Cleaning Spark Plugs
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Visually check the spark plug for thread damage and insulator damage.

Fig 7: Checking Spark Plug For Thread & Insulator Damage

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If abnormal, replace the spark plug.

Recommended spark plug:

RECOMMENDED SPARK PLUG

DENSO made	K16TR11
NGK made	BKR5EKB-11

Adjust the electrode gap.

Fig 8: Adjusting Electrode Gap
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Carefully bend the outer electrode to obtain the correct electrode gap.
1. Correct electrode gap: 1.1 mm (0.043 in.)
Using a 16 mm plug wrench, reinstall the spark plugs.
1. Torque: 18 N.m (180 kgf.cm, 13 ft.lbf)
Reinstall the 3 ignition coils.
Reconnect the 3 high-tension cords.

INSPECT IGNITION COIL

Remove the air cleaner hose.
Disconnect the high-tension cords and ignition coil connectors from the ignition coils.

Inspect the primary coil resistance.

Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.

Fig 9: Measuring Resistance Between Positive & Negative Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Primary coil resistance:

PRIMARY COIL RESISTANCE SPECIFICATIONS

Cold	0.67- 1.05 Ω
Hot	0.85 - 1.23 Ω

If the resistance is not as specified, replace the ignition coil.

Remove the ignition coils.

Inspect the secondary coil resistance.

Using an ohmmeter, measure the resistance between the positive (+) and high-tension terminals.

Fig 10: Measuring Resistance Between Positive & High-Tension Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Secondary coil resistance:

SECONDARY COIL RESISTANCE SPECIFICATIONS

Cold	9.3- 16.0 Ω
Hot	11.7 - 18.8 Ω

If the resistance is not as specified, replace the ignition coil.

Reinstall the ignition coils.
Reconnect the ignition coil connectors and the high-tension cords.
Reinstall the air cleaner hose.

INSPECT CAMSHAFT POSITION SENSOR

Disconnect the sensor connector.

Using an ohmmeter, measure the resistance between the terminals.

Resistance:

CAMSHAFT POSITION SENSOR RESISTANCE SPECIFICATIONS

Cold	835 - 1,400 Ω
Hot	1,060-1,645 Ω

If the resistance is not as specified, replace the sensor (See REPLACEMENT ) .

Reconnect the camshaft position sensor connector.

Fig 11: Measuring Resistance Between Terminals

INSPECT CRANKSHAFT POSITION SENSOR

Remove the sensor connector (See REPLACEMENT ) .

Using an ohmmeter, measure the resistance between the terminals.

Fig 12: Measuring Resistance Between Terminals

Resistance:

CRANKSHAFT POSITION SENSOR RESISTANCE SPECIFICATIONS

Cold	1,630 - 2,740 Ω
Hot	2,065 - 3,225 Ω

Reinstall the sensor.

Fig 13: Measuring Resistance Between Terminals