1989-Mitsu-Factory Manual · emission system · страница 24 из 38 · Открыть оригинал PDF ↗
AIR CONTROL VALVE AND THERM0 SENSC&
INSPECTION OF AIR CONTROL VALVE
(1) Remove the air cleaner.
(2) Disconnect the vacuum hose from the air control valve and
connect a hand vacuum pump to the valve nipple.
(3) Apply a vacuum of 67 kPa (19.7 in.Hg) and check air
tightness.
| Vacuum | Normal condition |
|---|---|
| 9 kPa-(2.8 in.Hg) or less -z | Cold air side inlet opens |
| 25 kPa (7.5 in.Hg) -Le | Cold air side inlet closes |
Таблица в оригинале
INSPECTION OF THERM0 SENSOR
(7) Connect a hand vacuum pump to the therm0 sensor nipple
and check air tightness.
Therrno sensor temperature Normal condition
30°C 186°F) or less 1 Vacuum holds
1 45’Z I1 13°F) or more 1 Vacuum leaks I
(2) If any fault is found in above checks, replace the air
cleaner body.
MIXTURE CONTROL VALVE (MCV) - Vehicles with a manual transmission Nzs1alEJ INSPECTION
Caution
Check the valve after warming up the engine.
(1) Remove the air cleaner.
(2) Start the engine and open and close the throttle valve
quickly to check MCV operation and air suction noise.
Normal condition
| Engine speed | MCV valve operation | Air suction noise |
|---|---|---|
| Throttleleverinoper- ation | Pops &t once and quickly closes | Heard |
| Idling | j Remafiis clc&d ) | Not heard I - |
Таблица в оригинале
Оригинальная страница руководства
