1998 · FUEL [13] · страница 15 из 104 · Открыть оригинал PDF ↗
Текст распознан со скана. Числа и обозначения можно сверить с оригиналом ниже.
LIST OF FAIL-SAFEIBACK-UP FUNCTIONS
When the failure ofa major Sensor is detected by the self diagnosis functions, the preset control logic
provides controls to assure safe operation of the vehicle:
Распознанный текст таблицы — требует сверки с оригиналом
| Trouble item | Controls to be provided in the event of trouble |
|---|---|
| Air flow sensor | timingand basic ignition timing read from the preset map based on the Injector basic drive throttle position sensor (TPS) signal and engine speed signal (crank angle sensor signal) idlingspeed control (2) Idle speed control servo fixed at predetermined position, and no achieved_ |
| Intake air tempera- ture sensor | Controls provided on the assumption that intake air temperature is 25*C |
| Throttle position sensor: (TPS) | No additional fuel injection provided on the basis of throttle position sensor signal at accelera- tion |
| Engine coolant temperature sensor | Controls provided on the assumption that engine coolant temperature is 80PC (Even if the sensor signal returns to normal, this control mode is retained until the ignition switch is set to OFF,) |
| Cam position sensor | (1) Fuel injected into all cylinders simultaneously (Provided that no No. 1 cylinder top dead center has been detected since the ignition switch was placed in the ON position) (2) Fuel cut 4 seconds after a failure was detected cylinder top dead center has been detected since the ignition (Provided that no No. switch was placed in the ON position) |
| Barometric pressure sensor | Controls provided on the assumption that barometric pressure is 101 kPa |
| Detonation sensor" <6G74-SOHC 24 Valve Engine> | is switched from the timing for super petrol to the timing for standard timing The ignition petrol. |
| Ignition coil and power transistor unit | Fuel cut for cylinders whose ignition signal is abnormal |
| Oxygen sensor | No air-fuel ratio feedback control (closed loop control) achieved |

