toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

On-Vehicle Inspection|Page 3389 > < Throttle Body|Specifications
Page 1
background image

Throttle Body: Testing and Inspection
On-Vehicle Inspection

ON-VEHICLE INSPECTION 

1. INSPECT THROTTLE BODY

-

Check that the throttle linkage moves smoothly.

-

Check the vacuum at each port.
-

Start the engine.

-

Check the vacuum with your finger.

2. INSPECT THROTTLE POSITION SENSOR

-

Apply vacuum to the throttle opener.

-

Disconnect the sensor connector.

-

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

-

Using an ohmmeter, measure the resistance between each terminal.

On-Vehicle Inspection|Page 3389 > < Throttle Body|Specifications