Toyota Land Cruiser 1988 Repair Manual page 199

Fl-68
vc
VTA
IDL
E2
EFI SYSTEM- Air Induction System
Throttle Body
Throttle Position
Sensor
Throttle Position
Sensor
Fl2448 Fl2503
Fl2483 Fl1476 Fl1 533
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 No. At idling Other than idling
EGR No vacuum Vacuum
R
No Vacuum Vacuum
2. INSPECT THROTTLE POSITION SENSOR
(a) Disconnect the sensor connector.
(b) Insert a thickness gauge between the throttle stop
screw and stop lever.
(c) Using an ohmmeter, measure the resistance be-
tween each terminal.