SSANGYONG 1999 Musso Service Manual page 600

1F1-30 M162 ENGINE CONTROLS
Test
Failure
step
code
Þ 1.0 · · · · · Fuel
pressure:in
idling speed
- When the
vacuum is
applied
Þ 2.0 · · · · · Fuel
pressure:in
idling speed
- When the
vacuum is
not applied
Þ 3.0 · · · · · Fuel system
internal
leakage:
Item Checking method
Connect the fuel
pressure test plug to
the pressure tester
(refer to the flgure on
previous page).
Connect the fuel
pressure test plug to
the pressure tester
(refer to the flgure on
previous page).
Connect the fuel
pressure test plug to
the pressure tester
(refer to the flgure on
previous page).
Requirement
Engine:in idling
·
- Close the valve
screw on pressure
tester
· Engine:in idling
- Close the valve
screw on pressure
tester
· Engine:stop
· After 30 minutes from
engine stop
Specified
Possible cause
value
3.2 - 3.6 bar Þ Fuel pump test
·
Fuel pressure
·
regulator
3.7 - 4.2 bar · Fuel pressure
regulator
> 3.0 bar · The pressure drops
rapidly:non-return
valve in fuel pump
> 2.5 bar · The pressure drops
slowly:
- Injector test
- Fuel pressure
regulator
- O-ring