On-Vehicle Inspection

NOTE: In this section, the terms "cold" and "hot" refer to the temperature of the coils. "Cold" means approximately -10°C (14°F) to 50°C (122°F). "Hot" means approximately 50°C (122°F) to 100°C (212°F).

INSPECT IGNITION COIL ASSY (WITH IGNITER) AND PERFORM SPARK TEST
1. Check for DTCs.
  NOTE: If a DTC is present, perform a troubleshooting in accordance with the procedure for that DTC .
2. Check if sparks occur.
  1. Remove the V-bank cover (see REPLACEMENT ).
  2. Remove the intake air surge tank (see REPLACEMENT ).
  3. Remove the ignition coils.
  4. Using a 16 mm (0.63 in.) plug wrench, remove the spark plugs.
  5. Install the spark plugs to each ignition coil and connect the ignition coil connectors.
  6. Disconnect the 6 injector connectors.
  7. Ground the spark plugs.
  8. Check if sparks occur at each spark plug while the engine is being cranked.
    NOTE:
    Be sure to ground the spark plug when checking.
    
    Replace the ignition coil if given physical impact is given to the coil.
    
    Do not crank the engine for more than 2 seconds.
    If sparks do not occur, do the following test:
    
    Fig 1: Spark Test Flow Chart
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.
    Torque: 25 N.m (255 kgf.cm, 18.5 ft.lbf)
  10. Install the ignition coil.
    Torque: 8.0 N.m (82 kgf.cm 71 in..Ibf)
  11. Install the intake air surge tank (see REPLACEMENT ).
  12. Install the V-bank cover (see REPLACEMENT ).