toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

On-Vehicle Inspection|Page 3096 > < On-Vehicle Inspection|Page 3094
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Throttle Body: Testing and Inspection
Off-Vehicle Inspection

1. CLEAN THROTTLE BODY.

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Using a soft brush and carburetor cleaner, clean the cast parts.

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Using compressed air, clean all the passages and apertures.

NOTICE: To prevent deterioration, do not clean the throttle position sensor and IAC valve.

2. INSPECT THROTTLE VALVE.

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Apply vacuum to the throttle opener.

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Check that there is no clearance between the throttle stop screw and throttle lever when the closed throttle position.

3. INSPECT THROTTLE POSITION SENSOR.

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Apply vacuum to the throttle opener.

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Insert a thickness gauge between the throttle stop screw and stop lever.

On-Vehicle Inspection|Page 3096 > < On-Vehicle Inspection|Page 3094