Pajero II Workshop Manual 1998 Supplement · FUEL · страница 12 из 104 · Открыть оригинал PDF ↗
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TROUBLE DIAGNOSIS QUICK REFERENCE CHART
Таблица в оригинале
Распознанный текст таблицы — требует сверки с оригиналом
| Trouble code No. | Diagnosis item | Description | Major cause | Remarks (Symptoms etc ) |
|---|---|---|---|---|
| Engine control unit | Trouble in engine con- trol unit itself | Engine stalls Engine cannot be started_ | ||
| 11 | Oxygen sensor <front> | Air-fuel ratio feedback control (closed loop control) is in effect but oxygen sensor signal voitae does not | Defective oxygen sensor (2) Open or short circuit in oxy- gen sensor circuit, Or con- nector in loose contact | Poor exhaust emission purifying performance |
| g change (air-fuel mix- ture lean/rich). | 3) Improper fuel pressure (4) Defective injector Air drawn in through gasket clearance, etc (6) Defective engine control unit | Poor exhaust emission purifying performance Poor startability Unstable idling Poor acceleration | ||
| 12 | Air flow sensor | Air flow sensor signal frequency 1OHZ or less even with engine running | Defective air flow sensor (2) Open or short circuit in air flow sensor circuit, or con- nector in loose contact (3) Defective engine control unit | Poor acceleration" idling Improper speed" Unstable idling* |
| 13 | Intake air temperature sensor | (1) Intake air tempera - ture sensor signal voltage over 4.5 V (2) Intake air tempera- ture sensor signal voltage less than 0.27 V | (1) Defective intake air tempera- ture sensor (2) Open or short circuit in intake air temperature sensor cir- cuit, or connector in loose contact (3) Defective engine control unit | Somewhat poor driveability At high temperatures (a) Poor startability" (b) Unstable idling* |
| 14 | Throttle position sensor | (1) Throttle position sensor signal voltage less than 0.2 V (2) Throttle position | (1) Throttle position sensor out of order or maladjusted (2) Open or short circuit in throt- tle position sensor circuit, or connector in poor contact | Somewhat poor acceleration Engine stalls |
| sensor signal voltage Over 2 V even with idle position switch at ON | (3) Idle position switch ON fail- ure (4) Short circuit in idle position signal line (5) Defective engine control unit | Engine stalls Engine cannot be raced. |
NOTE
Failsafelbackup function is in operation.
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