fuel consumption SSANGYONG MUSSO 2003 Service Manual

M162 ENGINE CONTROLS 1F1-13
Failurecode ItemChecking method
Te s t
stepRequirementSpecified value Possible cause
6.1 
Ignition:ON 0.1 - 0.3A
Cable
 Fuel pump relay
 ECU



Fuel pump
relay: - Current consumption
00, 01, 02, 06,
7.0 


Coolant
temperature sensor:- Voltage 79 78
Ignition:ON °CV
20 3.57
80 1.22
100 0.78 
7.1
 ECU
± 5%

6.0 
Ignition:ON
(Fuel pump relay will operate for 1 - 2seconds when theignition switch isturned to "ON" afterstopping the engine)
 Engine:cranking
33 11

Cable
 Fuel pump relay



Fuel pump
relay:- Operation
34, 11 - 14V
(approx.1- 2sec.)
11 - 14V
(Cranking or driving)
53 3
7.1 
Ignition:OFF
(Remove the No.2 coupling from ECU)
79 78 
7.2
 Cable



Coolant
temperature sensor:- Resistance & cable °
C
20 2500 80 322
100 185
± 5%
7.2 


Coolant
temperature sensor:- Resistance Coolant temperature
sensor:
14 Remove the
connector from coolant temperaturesensor and measurethe resistancebetween No.1 andNo.2 pin withmultimeter. 
refer to
specifiedresistancevalue of 7.1 
Coolant
temperaturesensor
34, 35,

1F1-32 M162 ENGINE CONTROLS
Failurecode ItemChecking method
Test
stepRequirementSpecified
value Possible cause
1 liter of fuel supply formax. 35
seconds



Fuel pump:
- Fuel supply ratio 
Ignition:ON
- Disconnect the fuel return pipe and connect the host tobeaker to collect thesupplied fuel

1.0 
2.0
 Check the fuel line
5 - 9 A



Fuel pump:
- Current consumption 
Ignition:ON
- Remove the fuel relay from the fuseand relay box inluggagecompartment andconnect theamperemeterbetween No.1 andNo.3 in relaybox(fuel pump relay removed position) for measuringcurrent consumption

2.0 
Fuel pump
53 3
Multi tester(DC current)
31

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

AUTOMATIC TRANSMISSION 5A-43
Figure 4.1 - Power Flow Diagram TORQUE CONVERTER
The torque converter (refer figure 4.2) consists of a turbine,
stator pump, impeller and a lock-up damper and piston
assembly. As in conventional torque converters, the impeller is
attached to the converter cover, the turbine is splined to the
input shaft and the stator is mounted on the pump housing via
a one way clutch (sprag).
The addition of the damper and piston assembly enables the
torque converter to ‘lock-up’ under favourable conditions. Lock-
up is only permitted to occur in third and fourth gears under
specified throttle and road speed conditions.
Lock-up is achieved by applying hydraulic pressure to the
damper and piston assembly which couples the turbine to the
converter cover, locking-up the converter and eliminating
unwanted slippage. Whenever lock-up occurs, improved fuel
consumption is achieved. Torsional damper springs are
provided in the damper and piston assembly to absorb anyengine torque fluctuations during lock-up. Figure 4.2 - Torque Converter Cross Section

MUSSO-SPORTS 1A-3
SUPPLEMENT
HUBER EGR
SYSTEM DESCRIPTION The following chart shows the relationship between the input and the output in Huber EGR control unit. Compared to traditional system that only operates theEGR valve with RPM sensor and Micro switch, the HuberEGR control unit bring big differences that of traditionalsystem on the functions.
Input Signal
RPM sensor (CPS)
EGR valve lift sensor
Throttle position sensor (TPS) - M/T
Shift lever position
Throttle position sensor (TPS)
Vehicle speed sensor(VSS) Basic input signal for EGR operation Engine cold or hot signal
Position signal of EGR valve that is triggered by vacuum modulator 1 Transfer the engine load signal to the control unit directly (manual transmission)
TCU (A/T)
EGR
Control
Unit
Coolant temperature sensor (CTS)
Solenoid valve (Control forvacuum modulator 2)
If the control unit determines it is in no-load sharp accel- eration mode after analyzing the input signals, this conver- sion type switch reduces the fuel consumption by cutting off the intake air pressure from
fuel injection ALDA and gen- erating the vacuum pressure. In no-load sharp acceleration
mode, Duty Control ( continu- ous precise control) is acti- vated according to the varia- tions of the input signals when the solenoid valve generates the vacuum pressure in ALDA.
Vacuum modulator 2
The opening value of the modulator is precisely con- trolled by input signals and programmed MAP, and the opening value of EGR valve is also changed by the varia- tions of vacuum pressure to EGR valve. The changed opening value is transferred to the control unit as input signal.
Vacuum modulator 1
TCU in automatic transmission equipped vehicle transfers the information such as driving conditions and speeds into the EGR control unit. EGR control unit uses the shift lever position and vehicle speed as important information for operating the solenoid valve during no-load sharp acceleration mode. In manual transmission, the signal of vehicle speed is transferred into the EGR control unit directly.
Clutch switch
In manual transmission, the clutch switch is the one of core elements to determine driving condition. Output Signal
EGR Control Unit