Integra GS-R Coupe L4-1797cc 1.8L DOHC (VTEC) MFI (1997)
Spark Plug: Testing and Inspection
SPARK PLUG / INSPECTION
1. Inspect the electrodes and ceramic insulator for:
Burned or worn electrodes may be caused by:
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Advanced ignition timing
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Loose spark plug
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Plug heat range too low
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Insufficient cooling
Fouled plugs may be caused by:
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Retarded ignition timing
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Oil in combustion chamber
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Incorrect spark plug gap
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Plug heat range too high
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Excessive idling/low speed running
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Clogged air cleaner element
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Deteriorated ignition coil or ignition wires