Pajero II Workshop Manual 1991 · FUEL · страница 33 из 339 · Открыть оригинал PDF ↗
Текст распознан со скана. Числа и обозначения можно сверить с оригиналом ниже.
Hint 3:
If idling is possible even though the air flowsen-
sor output frequency is deviatedfromthe stand-
ardvalue ,thecauseisusuallymalfunction
other than of the air flow sensor
[Examples]
(1)theflowof airwithinthe air flowsensor is
disturbed.(Air duct disconnectionOrclogged
air cleaner element )
(21 Incompletecombustionwithincylinder_
(Malfunction of spark plugs, ignition coil, injec-
tors, compression pressureetc.
(31Air is taken into the intake manifold through a
leaking gasket, etc
Проверка
Using Multi-use tester (MUT)
Air flow sensor
Таблица в оригинале
Распознанный текст таблицы — требует сверки с оригиналом
| Function | Item No. | Data display | Check conditions | Engine conditions | Standard value Hz |
|---|---|---|---|---|---|
| Data reading | 12 | Sensor detection air flow | Engine coolant temperature: 80-95'C (176-203F) Lights and accessories: OFF | 700 rlmin. (idling) 2,000 rlmin. | 25-45 70-90 |
| (frequency) | Transmission: neutral (P range for vehicles with AVT) Steering wheel: neutral position | Racing | Frequency increases by racing: |
NOTE
When the vehiclenew [driven approximately 500 km (300 miles)less], the air-flowsensor output frequency maybe
approximately 10% higher than indicated above.
Air flow sensor reset signal
Таблица в оригинале
Распознанный текст таблицы — требует сверки с оригиналом
| Function | Item no | Data display | Inspection condition | Engine condition | Normal display |
|---|---|---|---|---|---|
| Data list | 34 | Reset signal condition | Engine is warming up | 700 rlmin. (Idle) 2000 rlmin: | ON OFF |
Volumetric efficiency
Таблица в оригинале
Распознанный текст таблицы — требует сверки с оригиналом
| Function | Item no | Data display | Inspection condition | Engine condition | Normal display |
|---|---|---|---|---|---|
| Data list | 37 | Volumetric efficiency | Engine coolant temperature: 80-95*C (176-203*F) Lights, electrical cooling fan | 700 rlmin, (idle) 2000 rlmin. | 20-35% 15-30% |
| and all accessories: OFF Transmission: Neutral (P range for vehicles with AT) Steering wheel: Straight forward position | Racing | Volumetric efficiency increases according to amount of racing |
Feb.1991
Wave Pattern Inspection Using an Analyzer
Measurement Method
(1) Disconnectthe air flowsensor connector, and connect
the special tool (test harness:MB991348)inbetween.
(All terminals should be connected )
(2) Connect the analyzer special patterns pickup to terminal
of the air flow sensor connector.
PWJE9086
Оригинальная страница руководства
