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FEATURES
FEATURES
OUTLINE OF THE FI SYSTEM
The main function of a fuel supply system is to provide fuel to the combustion chamber at the opti-
mum air-fuel ratio in accordance with the engine operating conditions and the atmospheric tempera-
ture.Inthe conventional carburetor system, the air-fuel ratio of the mixture that is supplied to the
combustionchamber is created by the volume of the intake air and the fuel that is metered by the jet
used in the respective carburetor.
Despite the same volume of intake air, the fuel volume requirement varies by the engine operating
conditions,such as acceleration, deceleration, or operating under a heavy load.Carburetors that me-
ter the fuel through the use of jets have been provided with various auxiliary devices, so that an op-
timum air fuel ratio can be achieved to accommodate the constant changes in the operating
conditions of the engine.
This model has adopted an electronically controlled fuel injection (FI) system, in place of the conven-
tional carburetor system.This system can achieve an optimum air-fuel ratio required by the engine at
all times by using a microprocessor that regulates the fuel injection volume according to the engine
operating conditions detected by various sensors.
1. Fuel injector
2. Throttle position sensor
3. Intake air pressure sensor
4. ECU
5. Fuel pump
6. Intake air temperature sensor
7. Atmospheric pressure sensor
8. Crankshaft position sensor
9. Coolant temperature sensor
10. Ignition coil
11. Condenser