When the engine is running, the air intake valve is lifting up.
If the valve does not operate properly, check the air intake solenoid valve hoses for leak.
If there are no leaks, check the air intake solenoid valve.

Air Intake Solenoid Valve Unit TestLicense Plate Light Bulb Replacement
Remove:
Screws [A]
License Plate Light Cover [B]
Pull the bulb [A] out of the socket [B].
NOTICE
Do not turn the bulb. Pull the bulb out to prevent
damage to the bulb. Do not use bulb rated for
greater wattage than the specified value.
Replace the bulb with a new one.
In ...
General Information
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recording or otherwise,
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Engin ...
Armature Inspection
Using the × 1 Ω hand tester range, measure the resistance
between any two commutator segments [A].
Special Tool - Hand Tester: 57001-1394
If there is a high resistance or no reading (∞) between any
two segments, a winding is open and the starter motor
must be replaced.
...