Spark Plug: Service and Repair

3.3l:

Changing Spark Plugs
1. Disconnect ignition wires from spark plugs at boot. Do not pull on the wire.

3.3l:

2. Remove spark plugs with 16 mm (0.63 in) spark plug wrench.

^ For VG33ER engine only; to remove the No.2, and 4 spark plugs, the following components must be removed:
- Disconnect the accelerator cable from the throttle body.
- Disconnect the ASCD cable from the throttle body, if equipped.
- Remove air inlet tube bracket from air inlet tube (with cables attached) and position aside.




- Remove the air inlet duct.
^ Disconnect the PCV hoses.
^ Disconnect the resonator hose.

3.3l:

- Remove the air inlet tube upper and lower supports.

3.3l:

- Remove the air inlet tube bolts, nuts, and studs. Position the air inlet tube aside.
^ Disconnect the evaporative emission vacuum hose.
^ Disconnect the brake booster vacuum hose.
^ Disconnect the IPS sensor electrical connector.
^ Disconnect the IPS switch electrical connector.

3. Check type and gap of new spark plug.





^ Do not use a wire brush for cleaning.
^ If plug tip is covered with carbon, spark plug cleaner may be used.
Cleaner air pressure : Less than 588 kPa (6 kg/cm2, 85 psi)
Cleaning time: Less than 20 seconds





^ Checking and adjusting plug gap is not required between change intervals.
Spark plug (Double platinum-tipped type)
Gap (Nominal) : 1.1 mm (0.043 inch)
3. Install spark plugs. Reconnect ignition wires according to numbers indicated on them.
Spark plug : 20 - 29 Nm (2.0 - 3.0 kgf-cm, 14 - 22 ft. lbs.)