Here we will try to explain the basic stages of the system EFI (Electronic Fuel Injection) to be able to work normally. 1. Air
inlet of the intake manifold, where the water contained in the intake
manifold flow meter that measures the amount of air intake, air here in
the mix (mixed) with the fuel injector spray fuel. 2. Fuel injector lined placed near the intake valve (inlet) to accelerate the entry into the combustion chamber. Fuel injector works with electrical solenoid (coil of wire) whose operations are controlled leawat ECU. 3. ECU gives pulses (pulse) on fuel injector as on-off switches, which turn off the ground to get denyutannya. 4. When
the injector on the circumstances on (live), injector in an open
(open), the fuel spray teratomizasi disemrotkankan reversed from intake
valve. 5. When fuel disemrotkan the intake
manifold, the fuel is mixed with the incoming air depends on pressure
formed during throotle valve openings, the ideal ratio is 14:7:1
mixture, according to the comparison stokimometri. 6. ECU determines the number of injections depends on the measurement of air intake and engine rpm. 7. Depending
on the operating conditions of the engine, then spray fuel varies it is
calculated by the ECU via sensor existing sensors, such as engine
temperature, engine rpm, throttle opening angle, oxygen sensor in the
exhaust gas, it makes the ECU to calculate the amount of fuel injection
spray .