Temperature Sensor - Sym ATTILA RS-21 EFi 150 Service Manual

4. FUEL INJECTION SYSTEM

Temperature Sensor

Engine temperature sensor
Engine oil temperature sensor: According to the semiconductor's variable character, the sensor
Intake temperature and pressure sensor:
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detects the change of engine oil and metal wall and then transferred
into a voltage signal sending to the ECU. Then, the ECU corrects fuel
injection and ignition timing.
a sensor that is combined both pressure and NTC can
detect the absolute pressure and temperature in the intake
manifold, and then provides the ECU with signal for
adjustment fuel injection quantity based on environmental
temperature and location level.
Intake temperature and
pressure sensor
ECU
NTC-Negative Temperature
Coefficient Resistor