SsangYong Rexton. Service manual - part 406

SSANGYONG  Y200

1F1-40  M162 ENGINE CONTROLS

PURGE CONTROL  VALVE

YAD1F300

The fuel vaporization control system is in stalled to inhibit the fuel vaporized gas from discharging into the
atmosphere.

The fuel vaporized gas that is accumulated in the canister abstracts through the purge control valve purification
d u r i n g   t h e   e n g i n e   c o m b u s t i o n   ( e x c e p t   t h e   d e c r e a s i n g   m o d e )   a n d   c o o l a n t   t e m p e r a t u r e   o f   o v e r
80 ° C. For this reason, the Engine Control Module (ECM) transacts the engine speed, air inflow quantity, coolant
temperature, and intake temperature.

The purge control valve is activated by the ECM frequency according with the engine rotating speed to adjust the
purification rate. The purification rate is determined by the continuous valve opening interval.

The purge control valve is activated by the ECM for the following conditions:

•

Coolant temperature of over 80 ° C

•

Engine speed of over 1,000 rpm

•

2 minutes after starting

•

When the fuel cut-off mode is not activated

1 Purge Control Valve
2 Line to Engine

3 Line to Conister

M162 ENGINE CONTROLS  1F1-41

SSANGYONG  Y200

YAD1F310

Failure

Code

Description

Trouble  Area

Maintenance Hint

Purge control valve

short circuit to battery

Purge control valve

short circuit to ground

or open

Purge control circuit

malfunction

When short circuit to power

source

When short circuit to ground

or open circuit or open with

bad contact

When malfunction of purge

control : not work vale

•

Inspection the ECM pin 34 about short
circuit or open with bad contact.

•

Inspection the source power of valve

•

Inspection the purge control solenoid
vale

•

Inspection the ECM

40

41

54

YAD1F0J0

Specified Value

0.3 ~ 0.5 A

4. Remove the line to canister and measure the

pressure with the vacuum pressure gauge.

Test

1. Maintain the normal temperature and idling state by

operating the engine.

2. Connect the ECM terminal No. 11 and No. 34 and

check for normal operation through the output waves
using oscilloscope.

Notice: Test during purge control valve operation
after the minimum of 1 minute after the engine
turned on.

3. Connect the ECM terminal No. 34 and No.10 and

check for current consumption during the ignition
switch ON.

Specified Value

> 500 mbar

(after approx. 1 min.)

purge control valve

operates at this time

Notice:  Test while at normal temperature and at
idling state by operating the engine.

SSANGYONG  Y200

1F1-42  M162 ENGINE CONTROLS

FUEL RAIL

YAD1F320

1 Injector Connector
2 Injector
3 Fuel Rail
4 Fuel Supply Line

5 Fuel Return Line
6 Bolt
7 Vacuum Hose
8 O-Ring

M162 ENGINE CONTROLS  1F1-43

SSANGYONG  Y200

YAD1F330

Fuel Pressure Test

Tools Required

103 589 00 21 00 Fuel Pressure Gauge

1. Turn the ignition switch to “OFF” position.

2. Remove the fuel pressure test connector.

3. Connect the fuel pressure gauge to the fuel pressure

test connector.

4. Test the fuel pressure at idling by operating the

engine using the fuel pressure gauge 103 589 00
21 00.

Internal Leakage Test

1. Connect thefuel pressure gauge 103 589 00 21 00

to the fuel pressure test connector.

2. Stop the engine for approximately 30 minutes and

then check the fuel pressure changes.

5. Replace the pressure regulator diaphragm if out of

the specification.

YAD1F340

Vacuum Hose Connected (bar)

Vacuum Hose Disconnected (bar)

3.2 ~ 3.6

3.7 ~ 4.2

Fuel pressure (bar)

  2.5

3. If there is no change in fuel pressure and maintain

the following pressure over 30 minutes, it is normal.

Pressure change

Fuel pressure

drops slowly

Fuel pressure
drops rapidly

•

Fuel leakage at the
injector

•

Faulty fuel pressure
regulator’s
diaphragm and O-ring

•

Faulty check valve in
the fuel pump