On-Vehicle Inspection

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 10 0°C (212 °F).

1. INSPECT IGNITION COIL ASSEMBLY
a. Check for DTCs.

NOTE: If any DTC is present, perform troubleshooting in accordance with the procedures for that DTC.

b. Check that spark occurs.
1. Remove the V-bank cover.
2. Remove the intake air surge tank.
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 a spark occurs at each spark plug while engine is being cranked.

NOTE:
- Be sure to ground the spark plugs when checking.
- Replace the ignition coil if it receives an impact.
- Do not crank the engine for more than 2 seconds.




c. Perform the spark test according to the flowchart below.
1. Check that the wire harness side connector of the ignition coil with igniter is securely connected.

2. Perform a speak test on each ignition coil with igniter.
1. Replace the ignition coil with igniter with a normal one.




2. Perform the spark test again.




3. Check the power supply to the ignition coil with igniter.
1. Turn the engine switch on (IG).
2. Check that there is battery voltage at the ignition coil positive (+) terminal.




4. Check the VVT sensor output voltage.







5. Check the resistance of the crankshaft position sensor.




6. Check the IGT signal from the ECM.

d. Using a 16 mm (0.63 in.) plug wrench, install the spark plugs.

Torque: 18 N.m (184 kgf.cm, 13 ft.lbf)

e. Install the ignition coils.

Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf)

f. Install the intake air surge tank.
g. Install the V-bank cover.

2. CHECK VVT SENSOR OUTPUT VOLTAGE
a. Turn the ignition switch on (IG).
b. Check that the voltage between terminal VC1 and ground is 5 V.

HINT: For the terminal arrangement of the engine ECU.




c. While turning the crankshaft pulley by hand, measure the voltage between each terminal. Check that the voltage changes between the Hi range and Lo range as given in the table.

HINT: For the terminal arrangement of the engine ECU.