1989-Mitsu-Factory Manual · mpi system · страница 42 из 48 · Открыть оригинал PDF ↗
CLEANING THROlTLE BODY PARTS
(1) Clean all throttle body parts.
Do not use solvent to clean the following parts:
l Throttle position sensor
l Idle speed control servo
0 Idle position switch
If these parts are immersed in solvent, their insulation
will deteriorate.
Wipe them with cloth only.
(2) Check if the vacuum port or passage is clogged. Use
compressed air to clean the vacuum passage.
SERVICE POINTS OF REASSEMBLY
NWSGAC3
1. INSTALLATION OF THROTrLE POSITION SENSOR
(1) Set the throttle position sensor to the throttle body as
shown in the diagram.
(2) After turning the throttle position sensor 90” in the
counterclockwise direction to set it, tighten by turning
the screw.
(3) Connect the circuit tester between 1 (ground) and 3
(output), or between 3 (output) and 4 (power). Then,
make sure that the resistance changes smoothly when
the throttle valve is slowly moved to the fully open
position.
(4) Check for continuity across terminals 2 (Idle position
switch) and 1 (ground) with the throttle valve both fully
closed and fully open.
| 1 Throttle valve position I | Continuity |
|---|---|
| 1 Fullv closed | Conductive I |
| 1 Fully open I | Non-conductive I |
Таблица в оригинале
If there is not continuity with the throttle valve fully
closed, turn the throttle-position sensor itself com-
pletely in the clockwise direction, and then check
again.
(5) If the above specifications are not met, replace the idle
position switch.
Оригинальная страница руководства
