toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

On-Vehicle Inspection|Page 3391 > < On-Vehicle Inspection|Page 3389
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Throttle Body: Testing and Inspection
Off-Vehicle Inspection

THROTTLE BODY INSPECTION 

1. 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 throttle valve is fully closed.

2. INSPECT THROTTLE POSITION SENSOR

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Apply vacuum to the throttle opener.

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

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Using an ohmmeter, measure the resistance between each terminal.

3. IF NECESSARY, ADJUST THROTTLE POSITION SENSOR

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Loosen the 2 set screws of the sensor.

On-Vehicle Inspection|Page 3391 > < On-Vehicle Inspection|Page 3389