1. INSPECT FINS BLOCKAGE

If the fins are clogged, wash them with water or a steam cleaner.
Dry with compressed air.
NOTICE: If the distance between the steam cleaner and the core is too close, the fins may become damaged.
Keep the following injection distance.
Standard:

ComponentsBefore refueling the vehicle
Close all the doors and windows, and turn the engine switch to the
"lock" position (vehicles without a smart key system) or off (vehicles
with a smart key system).
Confirm the type of fuel.
Fuel types
Unleaded gasoline (octane rating 87 [research octane number 91] or
higher)
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