SsangYong Musso. Service manual — part 345
M161 ENGINE CONTROLS 1F2-59
1
2
3
4
1 Fuel Pump Connector Wiring
2 Fuel Return Pipe
3 Fuel Supply Pipe
4 Bolts
5 Fuel Return Pipe
6 Fuel Supply Pipe
7 Float
8 Ground Stud (Sender "-")
COLOR
Pump "+"
Thermister "+"
Ground
Sender Unit "+"
USE
Harness Location & Connector
A
B
C
D
2.0 BR
0.5 W
2.0 B
0.5 RY
1F2-60 M161 ENGINE CONTROLS
Tools Required
661 589 00 46 00 Cap Remover
Removal & Installation Procedure
1. Disconnect the negative battery cable.
2. Disconnect the harness connector (1).
3. Disconnect the fuel supply (6) and return (5) pipes.
4. Using a special tool, Unscrew the eight fuel retaining bolts
and remove the pump from fuel tank.
Notice
Check the condition of the seal and replace if necessary.
Drain the fuel before removing the pump.
M161 ENGINE CONTROLS 1F2-61
Notice
Replace the fuel pump relay if the measured value is over
9A.
Notice
Check the fuel filter and fuel line when the fuel delivery is
not within specified value.
Measure the Current Consumption of Fuel Pump
1. Remove the fuel pump relay from fuse and relay box in
trunk, and turn the ignition switch to "ON" position.
2. Using a multi-tester, measure the current consumption by
connecting the terminal No.1 and No.3 of pump.
Measure the Fuel Delivery From the Fuel Pump
1. Disconnect the return pipe from fuel distributor and insert
the appropriate hose into it.
2. Place the hose end into the beaker with the minimum capacity
of 1Liter.
3. Turn the ignition switch to "ON" position.
4. Connect the terminal No.33 and No.5 of ECU with a service
wire.
5. Measure the fuel delivery from the fuel pump.
1Liter/max.35sec.
Specifed Value
5 - 9A
Specifed Value
1F2-62 M161 ENGINE CONTROLS
PURGE SWITCHOVER VALVE
1 Purge Control valve
2 Line to engine
3 Line to canister
4 Canister
Functions
The fuel vaporization control system is installed 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 switchover valve purification during the
engine combustion (except the decreasing mode) and coolant
temperature of over 80
°
C. For this reason, the ECU transacts
the engine speed, air inflow quantity, coolant temperature, and
intake temperature.
The purge switchover valve is activated by the ECU 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 switchover valve is activated by the ECU for the
following conditions :
z
Coolant temperature of over 80
°
C
z
Engine speed of over 1000rpm
z
2 Minutes after starting
z
When the fuel cut-off mode is not activated
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