TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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FI/EFI System — Throttle Body, page 63

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p.064
Throttle Body — MK2 Supra EFI System, page 63
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Page text (OCR transcript)
Throttle Body

Throttle Position Sensor

Vc
VTA
IDL
Vc E2
VTA
IDL
E2

F10461 F10233

ON-VEHICLE CHECK

1. CHECK THROTTLE BODY
(a) Check that the throttle linkage moves smoothly.

F10775

(b) Check the vacuum at each port.
• Start the engine.
• Check the vacuum with your finger.

Part No. | At idling | Other than idling
8 | No vacuum | Vacuum
* | No vacuum | Vacuum
1 | No vacuum | No vacuum
6 | No vacuum | Vacuum

F-0483

2. CHECK THROTTLE POSITION SENSOR
(a) Check the resistance between the terminals.
• Unplug the connector from the sensor.
• Insert a thickness gauge between the throttle stop screw and stop lever.
• Using an ohmmeter, check the resistance between each terminal.

Ohmmeter

E2
IDL

F10468