ignition SSANGYONG MUSSO 1998 Workshop Owners Manual

M161 ENGINE CONTROLS 1F2-25
IDLING CONTROL AND ELECTRONIC PEDAL SYSTEM TEST
Þ 2.1· Ignition:ON
50 512.25 - 2.75 V· ·· ·
· Pedal valve
sensor:
- Power
supply
(potentiometer 2)
· Cable
· ECU
Failure
codeItem
Þ 1.0
Checking method
· Ignition:ON
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with
kick down
Test
stepRequirement
Specified
valuePossible cause
31 47
0.2 - 0.5 V
· ·· ·
· Pedal valve
sensor:
- Signal

(potentiometer 1)
160,
161,
164,
167,
4.3 - 4.8 V
· Þ 1.1
· Cable
· Pedal valve sensor
Þ 1.1
· Ignition:ON
31 324.75 - 5.25 V· ·· ·
· Pedal valve
sensor:
- Power
supply

(potentiometer 1)
· Cable
· ECU
Þ 2.0
· Ignition:ON
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with
kick down 50 48
0.1 - 0.4 V
· ·· ·
· Pedal valve
sensor:
- Signal

(potentiometer 2)
162,
163,
164,
167,
2.1 - 2.5 V· Þ 2.1
· Cable
· Pedal valve sensor
Þ 3.0
· Engine:in idling
84 87
0.3 - 0.9 V· ·· ·
· Throttle
valve
actuator:
- Signal
Throttle valve
potentiometer
1104,
105,
108,
109,
116,
119,
185,
4.0 - 4.6 V· Þ 3.1
· Cable
· E-GAS actuator
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with
kick down

1F2-26 M161 ENGINE CONTROLS
Failure
codeItem
Checking method Test
stepRequirementSpecified
valuePossible cause
Þ 3.1· Ignition:ON
84 1124.75 - 5.25 V· ·· ·
· Throttle
valve
actuator:
- Power
supply· Cable
· ECU
Þ 4.0
· Ignition:ON
68 670.8 - 2.3 V
The value will
be changed in
1.0 - 2.5V.· ·· ·
· Throttle
valve
actuator:
- Signal
Throttle valve
actuator
motor
voltage
supply104,
105,
108,
109,
116,
119,
185,· ECU
· Cable
· E-GAS actuator
· Engine:in idling
- Coolant
temperature:
> 70 °C 84 85
4.0 - 4.6 V

Throttle valve
potentiometer
2
0.3 - 0.9 V
· Position of
accelerator pedal:
- Closed throttle
position
- Full throttle with
kick down
Throttle
valve
potentiometer
1+2
· Ignition:OFF
< 10 W
Throttle valve
actuator
motor
resistance68 67

1F2-28 M161 ENGINE CONTROLS
FUEL PRESSURE AND INTERNAL LEAKAGE TEST
01 Pressure Tester
02 Pressure Hose
03 Measuring Beaker
Preparation
Connection of the Equipment
1. Turn the ignition switch to "OFF" position.
2. Remove the air cleaner cross pipe.
3. Remove the cap on fuel pressure test plug and connect the
pressure hose and pressure tester.
4. Prepare the beaker for measuring the amount of fuel.
Tools Required
103 589 00 21 00 Pressure Tester
119 589 04 63 00 Pressure Hose

1F2-30 M161 ENGINE CONTROLS
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.0 3 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

M161 ENGINE CONTROLS 1F2-31
Failure
codeItemChecking method Test
stepRequirementSpecified
valuePossible 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 Þ 1.0· Þ 2.0
· 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 Þ 2.0· Fuel pump
533
Multi tester(DC current)
31

M161 ENGINE CONTROLS 1F2-33
Figure 8. Shop Made Cable Figure 9. Fuel Injector Normal Spary Pattern
Failure
codeItemChecking method Test
stepRequirementSpecified
valuePossible cause
There should
be no leaks
and later
drops from
the injector· ·· ·
· Injector:
- Leakage
test· Ignition:ON
- Remove the fuel
distributor and fuel
injector with a unit. Þ 1.0· Þ 2.0
· Injector
The spray
pattern of the
injector most
show in the
figure 10
· Ignition:ON
- Connect the shop
made cable to the
injector.
- Collect the
spraying fuel with a
beaker
- Connect the shop
made cable to
No.11(+) and No.5
(-) terminal in test
box. Þ 2.0· Injector
533
· ·· ·
· Injector:
- Function
test and
spray
pattern
check
533

M161 ENGINE CONTROLS 1F2-35
Location
Engine ECU is located at the inside of cowl side trim in right
bottom of instrument panel of passenger side.
Removal & Installation Procedure
1. Turn the ignition switch to "OFF" position.
2. Disconnect the battery negative cable
3. Remove the cowl side trim form passenger side.
4. Unscrew four securing nuts for ECU from mounting bracket.
Installation Notice
5. Pulling out the ECU from bracket.
6. Disconnect the vehicle side coupling(B).
7. Installation should follow the removal procedure in the
reverse order.
Tightening Torque 9 - 11 Nm

1F2-38 M161 ENGINE CONTROLS
Engine Connector
Pin No.Abbreviation
Description
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80-
-
EV1
EV4
EV2
EV3
M+
M-
TM.31
-
ZSB23
ZSA14
NWS
EGR
-
SLP
-
MT
GND
LT -
-
Injector-cylinder 1
Injector-cylinder 2
Injector-cylinder 3
Injector-cylinder 4
E-GAS motor plus
E-GAS motor minus
Power ground TM.31
-
Ignition coil cylinder 2+3
Ignition coil cylinder 1+4
Camshaft control
EGR (Exhaust Gas Recirculation)
-
Second air pump relay
-
Engine coolant temperature
Intake air temperature ground
Intake air temperature

1F2-42 M161 ENGINE CONTROLS
Pin No.
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
Abbreviation Description
-
-
Injector-cylinder 1
Injector-cylinder 2
Injector-cylinder 3
Injector-cylinder 4
E-GAS motor plus
E-GAS motor minus
Power ground TM.31
-
Ignition coil cylinder 2+3
Ignition coil cylinder 1+4
Camshaft control
-
Second air pump relay
-
Engine coolant temperature
Temperature ground
Intake air temperature
Hot film air mass signal
-
-
E-GAS potentiometer ground
E-GAS potentiometer 2 signal
-
E-GAS potentiometer 1 signal
-
-
-
-
-
EV1
EV4
EV2
EV3
M+
M-
TM.31
-
ZSB23
ZSA14
NWS
-
-
SLP
-
MT
GND
LT
HFM
-
-
-
IP2S
-
IP1S
-
-
--
-
l
l
l
l
l
l
l
-
l
l
l
-
-
¡
-
l
l
l
l
-
-
l
l
-
l
-
-
-
-
-
l
l
l
l
l
l
l
-
l
l
l
-
-
¡
-
l
l
l
l
-
-
l
l
-
l
-
-
-
E23 ENG,
4speed A/T E23 ENG,
5speed A/T

1F2-44 M161 ENGINE CONTROLS
Removal & Installation Procedure
· ·· ·
·When removing the ECU only
1. Turn the ignition switch to "OFF" position.
2. Disconnect the negative battery cable.
3. Disconnect the couplings from ECU.
4. Unscrew the left and right bolt (3) on bolt (1) and auxiliarly
bracket and remove the auxiliarly bracket from the bracket
assembly (2).
Installation Notice
5. Unscrew the four bolts (5) and disconnect the ECU (6) from
the bracket assenbly.
Installation Notice
6. Installation should follow the removal procedure in the
reverse order.
Tightening Torque6 - 8 Nm
5 - 7 Nm(1)
(3)
Tightening Torque 5 - 7 Nm
8. Unscrew the bolts (5) and disconnect the ECU (6) from the
bracket assenbly.
Installation Notice · ·· ·
·When Removing the ECU with ABS or ABS/ASR Unit
1. Turn the ignition switch to "OFF" position.
2. Disconnect the negative battery cable.
3. Disconnect the couplings from ECU.
4. Disconnect the coupling from ABS or ABS/ASR unit.
5. Unscrew the bolt (1) and the left and right flange nuts.
6. Remove the ECU with ABS or ABS/ASR unit assembly.
7. Unscrew the left and right bolt (3) on the auxiliary bracket
and remove the auxiliary bracket from the bracket assembly.
Installation Notice
Tightening Torque 6 - 8 Nm
Tightening Torque 5 - 7 Nm
Tightening Torque 5 - 7 Nm
9. Installation should follow the removal procedure in the
reverse order.