KYMCO AHG5, Service Manual

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13. Fi DIAGNOSTIC TOOL
DT X360
5
3. EMS COMPONENTS INTRODUCTION
3.1. ECU (Electronic Control
Unit)
Input: DC 8~16V Battery voltage
There are 36 pins.
The ECU is a single-chip microprocessor.
The chip is recorded program of control
module, Fuel Maps, self-diagnostic and etc.
The ECU also has the processing module of
every sensors and the drive module of the
fuel injector, fuel pump and the ignition coil.
3.2. Fuel Injector
2 Pins
Power Input ECU
Input: DC 8~16V Battery voltage
Standard Resistance: 9.97~11.03
Ω
Fuel injector is a voltage driven
electromagnetic needle valve. It located on
the front part of engine and there is an
O-ring on each connecting side.
The ECU controls fuel injection and open
timing of fuel injector.
3.3. Fuel Pump
2 Pins
Power Input Grounded
Input: DC 8~16V Battery voltage
The ECU controls operation of the fuel pump
by controlling the power supply. The fuel
pump supplies 20L/hr fuel in 3kg/cm
2
pressure to fuel injector when power supply
gives DC 12V. There is a filter combined
with fuel level gauge under the fuel pump
inlet to prevent impurities from entering the
fuel pump.
It is a low-power DC motor turbine.