Throttle Body Inspection - Toyota 3F-E Repair Manual Supplement

FI-64
ER SYSTEM — Air Induction System
Throttle Body
Throttle Position
Sensor
ON-VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
Check that the throttle linkage moves smoothly.
(a)
Check the vacuum at each port.
(b)
• Start the engine.
• Check the vacuum with your finger.
Port No.
EGR
R
INSPECT THROTTLE POSITION SENSOR
2.
Disconnect the sensor connector.
(a)
Insert a thickness gauge between the throttle stop
(b)
screw and stop lever.
Using an ohmmeter, measure the resistance be-
(c)
t ween each terminal.
F12483 F11476 F11533
Other than idling
At idling
No vacuum
No vacuum
Vacuum
Vacuum