toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

On-Vehicle Inspection|Page 2835 > < On-Vehicle Inspection|Page 2833
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HINT: Install the filter with the coarser surface facing the atmospheric side (outward).

4. INSPECT THROTTLE OPENER.

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Warm up engine.

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Allow the engine to warm up to normal operating temperature.

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Check idle speed.

Idle speed: 700 ± 50 rpm

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Check throttle opener setting speed.

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Disconnect the vacuum hose from the throttle opener, and plug the hose end.

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Check the throttle opener setting speed. 

Throttle opener setting speed: 900 - 1,950 rpm 

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If the throttle opener setting is not as specified, replace the throttle body.

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Stop the engine.

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Reconnect the vacuum hose to the throttle opener.

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Start the engine and check that the idle speed returns to the correct speed.

On-Vehicle Inspection|Page 2835 > < On-Vehicle Inspection|Page 2833