SsangYong Musso. Manual — part 318

1F1-30 M162 ENGINE CONTROLS

Failure

code

Item

Checking method

Test

step

Requirement

Specified

value

Possible cause

3.2 - 3.6 bar

•••••

Fuel

pressure:in

idling speed

- When the

vacuum is

applied

•

Engine:in idling

- Close the valve

screw on pressure

tester

⇒

1.0

Connect the fuel

pressure test plug to

the pressure tester

(refer to the flgure on

previous page).

•

⇒

Fuel pump test

•

Fuel pressure

regulator

3.7 - 4.2 bar

•••••

Fuel

pressure:in

idling speed

- When the

vacuum is

not applied

•

Engine:in idling

- Close the valve

screw on pressure

tester

⇒

2.0

Connect the fuel

pressure test plug to

the pressure tester

(refer to the flgure on

previous page).

•

Fuel pressure

regulator

> 3.0 bar

•••••

Fuel system

internal

leakage:

•

Engine:stop

⇒

3.0

Connect the fuel

pressure test plug to

the pressure tester

(refer to the flgure on

previous page).

•

The pressure drops

rapidly:non-return

valve in fuel pump

> 2.5 bar

•

After 30 minutes from

engine stop

•

The pressure drops

slowly:

- Injector test

- Fuel pressure

regulator

- O-ring

M162 ENGINE CONTROLS 1F1-31

FUEL PUMP TEST

Preparation

1 ECU
2 Test Coupling(No.1-60)
3 Test Coupling(No.61-120)
4 Stop Watch
5 Measuring Beaker

Connection of the Equipment

1. Turn the ignition switch to "OFF" position.

2. Connect the test box to the ECU.

03 Test Box
04 ECU Test Cable

Tools Required

103 589 00 21 00 Pressure Tester

210 589 00 99 00 Adaptor Line

129 589 00 21 00 Test Box

210 589 08 63 00 Ecu Test Cable

1F1-32 M162 ENGINE CONTROLS

Failure

code

Item

Checking method

Test

step

Requirement

Specified

value

Possible cause

1 liter of fuel

supply for

max. 35

seconds

•••••

Fuel pump:

- Fuel supply

ratio

•

Ignition:ON

- Disconnect the fuel

return pipe and

connect the host to

beaker to collect the

supplied fuel

⇒

1.0

•

⇒

2.0

•

Check the fuel line

5 - 9 A

•••••

Fuel pump:

- Current

consumption

•

Ignition:ON

- Remove the fuel

relay from the fuse

and relay box in

luggage

compartment and

connect the

amperemeter

between No.1 and

No.3 in relay

box(fuel pump relay

removed position)

for measuring

current consumption

⇒

2.0

•

Fuel pump

5

33

Multi tester(DC current)

3

1

M162 ENGINE CONTROLS 1F1-33

Connection of the Equipment

1. Connect the test box to the ECU as shown in the figure.

2. Remove the 2-pin coupling from injector.

3. Remove the fuel distributor and injector with a unit. At this

time, do not remove the supply and return line.

4. Connect the shop made cable to the injector with a firing

order.

5. Collect the fuel from injector.

INJECTOR TEST

1 ECU
2 Test Coupling(No.1-60)
3 Test Coupling(No.61-120)
4 Measuring Beaker
5 Shop Made Cable

Preparation

03 Test Box
04 ECU Test Cable

Tools Required

129 589 00 21 00 Test Box

210 589 08 63 00 Ecu Test Cable