Daewoo Musso. Manual — part 147
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M162 ENGINE CONTROLS 1F1-27
Failure
code
Item
Checking method
Test
step
Requirement
Specified
value
Possible cause
Þ
3.1
·
Ignition:ON
84
112
4.75 - 5.25 V
·
·
·
·
·
Throttle
valve
actuator:
- Power
supply(5V)
·
Cable
·
ECU
Þ
4.0
·
Ignition:ON
68
67
0.8 - 2.3 V
The value will
be changed in
1.0 - 2.5V.
·
·
·
·
·
Throttle
valve
actuator:
- Signal
Throttle valve
actuator
motor voltage
supply
104,
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
resistance
68
67
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1F1-28 M162 ENGINE CONTROLS
AIR CONDITIONER CONTROL SYSTEM TEST
Þ
2.0
·
Engine:In idling
·
Air conditioner
switch : ON/OFF
Air conditioner
switch : OFF
Air conditioner
switch : ON
Coolant temperature:
above 105
°
C
10
35
11 - 14 V
11 - 14 V
< 1 V
·
·
·
·
·
Condenser
fan(HI)
control:
·
Condenser fan
relay
·
Fan motor
·
ECU
Failure
code
Item
Þ
1.0
Checking method
·
Engine:In idling
·
Air conditioner
switch : ON/OFF
Air conditioner
switch : OFF
Air conditioner
switch : ON
Test
step
Requirement
Specified
value
Possible cause
10
44
< 1 V
·
·
·
·
·
Air
conditioner
signal:
- Input signal
(input signal
from thermo
amplifier)
44,
45,
11 - 14 V
·
Þ
5.1
·
Cable
·
Thermo amp
·
Auto amp
·
Dual pressure
switch
·
Air conditioner
control panel
Þ
1.1
·
Engine:In idling
·
Air conditioner
switch : ON/OFF
Air conditioner
switch : OFF
Air conditioner
switch:ON
10
27
< 1 V
·
·
·
·
·
Air
conditioner
compressor:
- Output
signal
11 - 14 V
·
Thermo amp
·
Auto amp
·
Dual pressure
switch
·
Air conditioner
control panel
·
ECU
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M162 ENGINE CONTROLS 1F1-29
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
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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
Þ
1.0
Connect the fuel
pressure test plug to
the pressure tester
(refer to the flgure on
previous page).
·
Þ
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
Þ
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
Þ
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
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