In 2002, Honda significantly changed the Civic, giving it more aggressive body-lines, as well as elongating the headlight and taillight assemblies. The 2002 Civic LX came in both a coupe and sedan body style. A 115-horsepower, 1.7-liter four-cylinder engine powered the 2002 Civic LX. The spark plugs in this engine required replacement every 110,000 to help keep the Civic's engine running well as long as possible. To access the Civic's spark plugs, you must remove the small plastic cover on top of the engine and remove the coil packs.
Check the spark plug on all four new NGK PZFR6F-11, or equivalent, spark plugs using a spark plug gap tool. The 1.7-liter engine requires a spark plug gap from 0.039 to 0.043 inches. Exchange any incorrectly gapped plugs for new ones, as these spark plugs are non-adjustable.
Remove the coil pack cover -- the small plastic cover on top of the Civic's engine -- by turning the plastic retaining screw a quarter-turn, using a flat-head screwdriver and pulling the cover off the engine.
Press the locking tab on the coil pack wiring harness and pull the harness from the coil pack.
Loosen the coil pack-retaining nut, using a ratchet and socket. Pull the coil pack upward to remove it from the spark plug.
Remove the spark plug from the engine, using a ratchet and 16 mm spark plug socket. Pull the old spark plug from the spark plug socket. Insert a new spark plug into the 16 mm spark plug socket until the spark plug seats in the socket.
Hand-tighten the spark plug into the engine, using the spark plug socket. Using a torque wrench and the 16 mm spark plug socket tighten the spark plug to 13 foot-pounds.
Set the coil pack onto the spark plug and press it downward until you feel the coil pack click into place. Tighten the coil pack nut to 13 foot-pounds, using a torque wrench and socket. Plug the wiring harness back into the coil pack.
Repeat Steps 3 through 7 to replace the remaining three spark plugs.
Set the coil pack cover back on top of the engine and turn the two retaining screws a quarter-turn clockwise, using a flat-head screwdriver, to lock it into place.
