Fuel Injection System

B5244S6, Fuel Injection System







Combined Fuel Pressure/Fuel Temperature Sensor

Fuel Temperature Sensor
A negative temperature coefficient (NTC) sensors transmits a voltage signal (corresponding to a certain temperature) to the engine control module (ECM). The signal is used to compensate for changes in fuel temperature. The injection period is regulated to provide compensation.

Example: If the engine is restarted after a short stop, the temperature of the fuel in the fuel rail will have increased. The engine control module (ECM) uses the signal from the sensor to compensate for the increased temperature by extending the injection period. (The volumetric energy content of hot fuel is lower than cold fuel).

Fuel Injection System Miscellaneous
- Fuel tank constructed from stainless steel
- Fuel pump (FP) which is activated as required
- Leak diagnostic based on the overpressure principle
- DENSO fuel control system
- New DENSO ETA (Electronic Throttle Actuator).