Spark Plug: Testing and Inspection

1. REMOVE AIR CLEANER CAP AND MAF METER ASSEMBLY.
- Disconnect the MAF meter connector and IAT sensor connector.
- Loosen the hose clamp, disconnect the air cleaner hose from the intake air connector.
- Remove the air cleaner cap and MAF meter assembly.





2. REMOVE INTAKE AIR CONNECTOR.
- Disconnect the air hose (for IAC) from the air connector.
- Remove the 2 bolts.
- Loosen the hose clamp, disconnect the intake air connector from the throttle body.





3. DISCONNECT HIGH-TENSION CORDS FROM SPARK PLUGS.
- Disconnect the high - tension cords at the rubber boot.
- DO NOT pull on the cords.

NOTICE: Pulling on or bending the cords may damage the conductor inside





4. REMOVE SPARK PLUGS.
- Using a 16 mm plug wrench, remove the spark plug.

Torque: 20 Nm (14 ft lb)





5. CLEAN SPARK PLUGS.
- Using a spark plug cleaner or wire brush, clean the spark plug.





6. VISUALLY INSPECT SPARK PLUGS.
- Check the spark plug for electrode wear, threads damage and insulator damage.
- If abnormal, replace the plugs.

Recommended spark plugs:
ND: K16R-U
NGK: BKR5EYA





7. ADJUST ELECTRODE GAP.
- Carefully bend the outer electrode to obtain the correct electrode gap.

Correct electrode gap: 0.8 mm (0.031 in)





8. INSTALL SPARK PLUGS.
- Using a 16 mm plug wrench, install the spark plug.

Torque: 20 Nm (14 ft lb)

9. RECONNECT HIGH-TENSION CORDS TO SPARK PLUGS.