check engine SSANGYONG MUSSO 1998 Workshop Repair Manual

M162 ENGINE CONTROLS 1F1-55
Removal & Installation Procedure
1. Remove the O-ring.
Check for damage and replace it if necessary.
2. Remove the injector bracket from the injector.
Installation Notice
Exactly seat the anti-twist lock into the square groove in
injector.
3. Separate the injector from the fuel distributor.
Inspection & Maintenance
Inspection of the Injector operation and spray pattern
1. Connect the contact box to the ECU.
2. Connect the shop made test plug to the injector and place
it into the tank.
3. Position the ignition switch to ON.
4. Connect the pin 63(+) and 69(-) of the contact box with a
test cable.
5. Check the injector spray pattern.
Notice
Replace the injector if the injector spray pattern is abnormal
or the fuel doesn't inject.
Injector Resistance Inspection
1. Remove the injector connector.
2. Measure the injector coil resistance using a resistance
tester.
Notice
Replace the injector if the measured values is out of the
specified values. Check the connector and wire connection
between the ECU and the injector if the measured values
are normal.
Specified Value
14 - 17 W

1F1-56 M162 ENGINE CONTROLS
The Injector Spray Pattern Check
1. Connect the test box (129 589 00 21 00) to the ECU.
2. Disconnect the connector from connector.
3. Disconnect the fuel distributor and injector with a unit from
engine without removing the fuel supply and return line.
Notice
Prepare the beaker for taking the poping fuel.
4. Connect either end of shop made cable to the injector.
5. Connect the other end of shop made cable to the No.21
(+:63)and No.3(-:69) terminal of the test box.
6. Turn the ignition switch to "ON" position.
7. Check the injector for normal spray pattern as shown in the
figure. Check injector for leaks or later drops.
Notice
Refer to fuel injector test of engine diagnosis in this section
for detailed information.

M162 ENGINE CONTROLS 1F1-57
FUEL FILTER
1 Fuel Filter
2 Outlet
Removal & Installation Procedure
1. Open the fuel tank cap and remove the fuel tank pressure.
2. Remove the fuel at (2) and in (3).
Installation Notice
Notice
Place the fuel pump pad. There may be a corrosion due to
the contact between the fuel filter and the bracket.
4. Check for leaks by operating the engine.
Notice
Installation should follow the removal procedure in the
reverse order. 3. Remove the mounting bracket bolt (4) and remove the fuel
filter (1).
Installation Notice3 Inlet
Tightening Torque
25 - 30 Nm
Tightening Torque
4 - 8 Nm

1F1-60 M162 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.

M162 ENGINE CONTROLS 1F1-61
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

M162 ENGINE CONTROLS 1F1-63
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 ECU terminal No.11 and No.34 and check for
normal operation through the output waves using the
scanner.
Notice
Test during purge control switchover valve operation after
the minimum of 1 minute after the engine turned on.
3. Connect the ECU terminal No.34 and No.10 and check for
current consumption during the ignition switch ON.
Purge switchover valve output wave Specified Value
0.3 - 0.5
Specified Value > 50mbar
(after approx. 1min.)
purge switchover valve
operates at this time
Notice
Test while at normal temperature and at idling state by
operating the engine.

1F1-66 M162 ENGINE CONTROLS
Crankshaft Position Sensor Resistance
Inspection
1. Disconnect the coupling "E" of ECU while the ignition switch
is in "OFF" position.
2. Measure the resistance between the coupling terminal pin
No.99 and No.100 using a multimeter.
Notice
Measure the insulator resistance of the crankshaft position
sensor if out of the specified value.
Crankshaft Position Sensor Output Wave
Inspection
1. Connect the test box to the ECU.
2. Measure the output wave between the ECU terminals No.99
and No.100 using the scanner or the oscilloscope while
engine cranking (starter motor activated).
Notice
Check the segment or crankshaft position sensor and air
gap if cannot get the output wave as shown in the figure.
Specified Value 1050 - 1400 W
Specified Value > 20kW
Crankshaft Position Sensor Insulator Resistance
Inspection
1. Disconnect the engine coupling from ECU while the ignition
switch is in "OFF" position.
2. Measure the resistance between the coupling terminal pin
No.100 and No.69.
Notice
Measure the check and ground terminal of the crankshaft
position sensor if out of the specified value.

M162 ENGINE CONTROLS 1F1-67
CAMSHAFT POSITION SENSOR
1 Bolt (M6 X 14)......................................... 9-11Nm
2 Camshaft Position Sensor
Removal & Installation Procedure
1. Disconnect the wiring connector from the camshaft position
sensor.
2. Unscrew the bolt (2) and remove the camshaft position
sensor.
Installation Notice3 Shim
5 O-ring
Tightening Torque 9 - 11 Nm
3. Check the clearance and replace the shim if necessary.
4. Check the O-ring for damage and replace it if necessary.
5. Installation should follow the removal procedure in the
reverse order.

1F1-68 M162 ENGINE CONTROLS
Camshaft Position Sensor Power Supply
Inspection
1. Turn the ignition switch to 'ON' position.
2. Disconnect the camshaft position sensor connector.
3. Measure the voltage between the No.1 and No.3 pin of
camshaft position sensor while the ignition switch is in "ON"
position.
Notice
If the measured value is not within the specified value, check
the cable.Notice
The signal voltage will be changed in the range of 1.2 -
1.7V.
Camshaft Position Sensor Output Wave
Inspection
1. Connect the test box to the ECU.
2. Measure the output wave between the ECU terminal No.104
and No.106 using the scanner or the oscilloscope while the
engine speed is at idle.
Notice
Replace the camshaft position sensor if cannot get the
output wave as shown in the figure.
Specified Value 11 - 14 V
Specified Value 1.2 - 1.7 V
Camshaft Position Sensor Signal Voltage
Inspection
1. Connect the test box to the ECU.
2. Measure the voltage between the ECU terminal No.11 and
No.106 while the engine speed is at idle.

M162 ENGINE CONTROLS 1F1-75
COOLANT TEMPERATURE SENSOR
1 Artificial Resin Housing
2 Metal Housing
3 NTC (negative temperature coefficient) Resistor
Removal & Installation Procedure
1. Remove the pressure by opening the pressure cap in the
coolant subtank.
2. Disconnect the connector and remove the coolant
temperature sensor.
Installation Notice
Replace the seals with new one.
3. Installation should follow the removal procedure in the
reverse order.
4. Check for leaks at each connections after starting the engine.4 Connector
5 Coolant Temperature Sensor
Tightening Torque 18 - 22 Nm