SsangYong Rodius (2013 year). Manual — part 58
03-24
2) Fuel System Flow Diagram
The fuel from the fuel tank is supplied to the fuel heater of fuel filter/priming pump and then low
pressure generated by the low pressure pump (built into HP pump) is transmitted to the HP pump.
The fuel pressure at the HP pump is controlled by the IMV valve, and the maximum allowed pressure
is 1,800 bar. The compressed fuel at the fuel pump is delivered to the rail, and injected by the injectors
according to the injection signals. The injection method is the same with the conventional method; Fuel
return by backleak which operates the needle valve.
The major difference is that the fuel return line is connected to the fuel filter inlet port, not the HP pump
venturi.
The pressure from the high pressure pump is increased to 1,800 bar from 1,600 bar, and the pump is
now installed to the cylinder head (cylinder block for previous model). The fuel pressure is generated
by the operation of intake camshaft and gears. The specifications for the IMV valve and the fuel
temperature sensor are not changed.
03-25
2210-01
3) Input/Output devices
Refer to Chapter "Engine Control".
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03-26
The engine ECU calculates the accelerator pedal based on the input signals from various sensors, and
controls the overall operation of the vehicle.
The ECU receives the signals from various sensor through data line, and performs effective air-fuel ratio
control based on these signals.
The crankshaft speed (position) sensor measures the engine speed, and the camshaft speed (position)
sensor determines the order of injections, and the ECU detects the amount of the accelerator pedal
depressed (driver's will) by receiving the electrical signals from the accelerator pedal sensor.
The mass air flow sensor detects the volume of intake air and sends the value to the ECU.
The major function of the ECU is controlling air-fuel ratio to reduce the emission level (EGR valve
control) by detecting instantaneous air flow change with the signals from the mass air flow sensor.
Also, the ECU uses the signals from the coolant temperature & air temperature sensors, booster
pressure sensor, atmospheric pressure sensor to: a) determine injection starting point and set value for
pilot injection, and b) deal with various operations and variable conditions.
04-3
1719-00
1. SPECIFICATIONS
Shorten the service interval under severe conditions such as driving on a dusty road or off-road.
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Unit
Description
Specification
Air cleaner element
Filter type
Dry, filter element
Initial resistance
Max. 300 mmAq
Service interval
EU: Change every 20,000 km
GEN: Change every 15,000 km
Air cleaner assembly
Weight
2.36kg
Operating temperature
-30 ~ 100℃
Intercooler
Radiation
over 13,000 Kcal
Pressure loss at turbocharger
below 90 mmHg
Cooling type
Air cooled type
Core size
450W*130H*70T
Core type
C/FIN
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