toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

On-Vehicle Inspection|Page 4009 > < Throttle Body|Specifications|Page 4006
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.

2. INSPECT THROTTLE POSITION SENSOR

(a) Apply vacuum to the throttle opener.
(b) Disconnect the sensor connector.

Ohmmeter Connection

Reference Chart

(c) Using an ohmmeter, measure the resistance between each terminal.
(d) Reconnect the sensor connector.

3. INSPECT THROTTLE OPENER

(a) Allow the engine to warm up to normal operation temperature.
(b) Check idle speed.

Idle speed: 700 ± 50 rpm 

On-Vehicle Inspection|Page 4009 > < Throttle Body|Specifications|Page 4006