SSANGYONG Rexton Y200 Manual page 569

The pressure difference between the fuel pressure and
the intake manifold is about 3.8 bars during the full
load.
1. Fuel Pressure Regulator
2. Intake Manifold
3. Fuel Return (to fuel tank)
4. Fuel Supply (from fuel pump)
5. Fuel Pressure (approx. 3.8 bars)
6. Intake Manifold Negative Pressure (0 bar)
<Operating at Idle and partial load>
The spring chamber (9) is connected to the intake
manifold with the vacuum hose at the intake pipe
connection (7). The negative pressure generated in the
intake manifold activates the diaphragm, and thus the
fuel pressure gets reduced to the rate of the operating
extent of the diaphragm by the intake manifold's
negative pressure.
Consequently, the fuel pressure in the fuel distributor
changes by the intake manifold's negative pressure,
and the injector's fuel pressure gets reduced
independently to the throttle valve's position. Thus,
the fuel injection volume can only be determined
according to the injector's injecting duration.
The pressure difference between the fuel pressure and
the intake manifold is approx. 3.2 bars during idling.
SSANGYONG Y200
M161 ENGINE CONTROLS 1F2-45
1. Fuel Pressure Regulator
2. Intake Manifold
YAD1F370
3. Fuel Return (to fuel tank)
4. Fuel Supply (from fuel pump)
7. Fuel Pressure (approx. 3.2 bars)
8. Intake Manifold Negative Pressure (0.6 bars)
<Fuel Pressure Diagram>
A. Fuel pressure
B. Intake Manifold Negative Pressure
LL. Idling
TL. Partial load
VL. Full load
YAD1F380
YAD1F390
YAD1F400