toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

On-Vehicle Inspection|Page 1760 > < Throttle Body|Specifications|Page 1757
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Throttle Body: Testing and Inspection
On-Vehicle Inspection

1. INSPECT THROTTLE BODY.

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Check that the throttle linkage moves smoothly.

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Check the vacuum at each port.
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Start the engine.

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Check the vacuum with your finger.

2. INSPECT THROTTLE POSITION SENSOR.

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Disconnect the TP sensor connector.

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Apply vacuum to the throttle opener.

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Using an ohmmeter, measure the resistance between each terminal.

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Reconnect the TP sensor connector.

3. INSPECT THROTTLE OPENER.

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Warm up engine. Allow the engine to warm up to normal operating temperature.

On-Vehicle Inspection|Page 1760 > < Throttle Body|Specifications|Page 1757