Acura 98079-5514N Spark Plug (Pzfr5F-11) (Ngk)

Spark plugs are in the center of each cylinder head. To replace, you need a spark plug socket, extensions, a feeler gauge, and a torque wrench. Buy the correct plugs, check the gaps, and replace one at a time. Let the engine cool before removing plugs. Inspect new plugs for defects and check gaps. Remove engine and ignition coil covers. Disconnect the ignition coils and remove the spark plug. Apply anti-seize compound to the plug threads, avoiding the electrodes. Install the new plug, then attach the coil. Repeat for all plugs.

Compare the spark plug with the chart to assess the engine's running condition. Apply a thin coat of anti-seize compound to the threads of the new plugs.

Allow the engine to cool completely before attempting to remove any of the spark plugs. During this cooling-off time, inspect each of the new spark plugs for defects and check the gaps.