Spark Plug: Service and Repair

SPARK PLUG (PLATINUM-TIPPED TYPE)





Removal and Installation

REMOVAL
1. Remove the engine cover, using power tool.
2. Drain engine coolant. Refer to "DRAINING ENGINE COOLANT".
3. Disconnect the mass air flow sensor electrical connector and remove the air cleaner assembly and air intake tubes. Refer to "Removal and Installation".
4. Remove the intake manifold collector, gasket, and electric throttle control actuator. Refer to "Removal and Installation".
5. Remove the six ignition coils.

CAUTION: Do not shock it.





6. Remove the six spark plugs using a suitable tool.
^ If replacing the spark plugs use the correct spark plug for maximum performance. Refer to "Changing Spark Plugs (Platinum - Tipped Type)".

INSPECTION AFTER REMOVAL
Use standard type spark clue for normal driving conditions. Refer to "SPARK PLUG".

The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions such as:
^ Frequent engine starts
^ Low ambient temperatures

The cold type spark plug is suitable when engine spark knock occurs with the standard type spark plug under conditions such as:
^ Extended highway driving
^ Frequent high engine revolution





Do not use a wire brush for cleaning.

If plug tip is covered with carbon, a 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 chance intervals.
Gap (nominal) : 1.1 mm (0.043 inch)

INSTALLATION
Installation is in the reverse order of removal.