Contents: Fuel filter water level indicator ⇊ Fuel heating ⇊ Fuel injector ⇊ Fuel Rail Pressure (FRP) Sensor ⇊ Fuel temperature sensor ⇊ Fuel pump ⇊ PGM-FI Fuel Injection System Main…⇊ Intake Manifold Runner Control (IMRC) ⇊ Intake Manifold Runner Control…⇊ Turbocharger Boost ⇊
Fuel coming from the tank is compressed by the fuel pump and accumulates in the common rail. The injection timing and amount of fuel injected is controlled by the ECM, which sends a signal to the solenoid valve of each fuel injector.
See the System Diagram for a functional diagram of this system. Glow Plug Control Relay
Controls the timing and duration of glow plug activation during engine start-up in accordance with coolant temperature.
Fuel filter water level indicator
This water level indicator is installed in the fuel filter. It detects the water level in the fuel filter.
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Fuel heating
Fuel heating is built into the fuel filter.
The system prevents wax deposits in the fuel when the temperature drops to a critical value.
Fuel injector
This model is equipped with a compact and economical electromagnetic valve for controlling the injectors. Each fuel injector is assigned its own IQA number, which allows for more precise fuel injection, thanks to the injection control on each injector depending on the operation of the injection system.
Fuel Rail Pressure (FRP) Sensor
The FRP sensor detects the fuel pressure in the common rail.
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Fuel temperature sensor
The fuel temperature sensor is installed in the fuel filter. The fuel temperature sensor is a resistor that changes its resistance depending on the temperature (thermistor). The resistance of the thermistor decreases as the fuel temperature increases.
Fuel pump
The fuel pump takes the required amount of fuel, which then enters the common discharge line under high pressure.
PGM-FI Fuel Injection System Main Relay
The PGM-FI fuel injection system main relay is energized whenever the ignition switch (II) is turned on, supplying voltage to the ECM battery.
Intake Manifold Runner Control (IMRC)
The IMRC valve provides combustion stability at low speeds by opening and closing. The IMRC valve opens and closes, creating a pause in the flow between the swirl channel and the secondary port, controlling the volume of swirl flow.
Intake Manifold Runner Control (IMRC) Position Sensor
The IMRC position sensor detects the angle of the IMRC valve.
Turbocharger Boost
This model is equipped with a variable nozzle turbocharger model. It maintains the optimum balance of backpressure and overpressure for engine speed and load by opening and closing a variable nozzle located on the periphery of the turbine and regulating the flow rate and pressure of exhaust gases at the inlet of the turbocharger.
Note: The illustration shows the turbocharger boost solenoid valve.
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