Toyota 2VZ-FE Manual page 145

EFI SYSTEM – Air Induction System (Throttle Body)
Throttle Body
ON–VEHICLE INSPECTION
1. INSPECT THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.
(b) Check the vacuum at each port.
Start the engine.
Check the vacuum with your finger.
Port name
P
E
R
2. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the sensor connector.
(b) Insert a feeler gauge between the throttle stop screw
and stop lever.
(c) Using an ohmmeter, measure the resistance between
each terminal.
At idling Other than idling
No vacuum Vacuum
No vacuum Vacuum
No vacuum Vacuum
FI–39