350Z V6-3.5L (VQ35) (2003)
Spark Plug: Testing and Inspection
SPARK PLUG (PLATINUM-TIPPED TYPE)
REMOVAL
1. Remove engine cover with power tool.
IGNITION COIL
2. Remove ignition coil.
3. Remove spark plug using spark plug wrench (commercial service tool).
INSPECTION AFTER REMOVAL
Use standard type spark plug for normal condition.
The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions such as:
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Frequent engine starts
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Low ambient temperatures
SPARK PLUG TYPE
The cold type spark plug is suitable when spark plug knock occurs with the standard type spark plug under conditions such as:
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Extended highway driving
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Frequent high engine revolution