fuel consumption KIA CARNIVAL 2007 Workshop Manual

2007 > 2.7L V6 GASOLINE >
Compression pressure inspection
If the there is lack of power, excessive oil consumption or poor fuel economy, measure the compression
pressure.
1. Warm up the engine until the normal operating temperature becoming 80~95°C(176~203°F).
2. Remove the surge tank.
3. Remove the ignition coil connectors(B) and ignition coils.
4.Using a 16mm plug wrench, remove the 6 spark plugs.
5. Check cylinder compression pressure.
(1) Insert a compression gauge into the spark plug hole.
(2) Open the throttle fully.
(3) With the fully - open throttle in cranking, measure the compression pressure.
Always use a fully charged battery to get the engine speed of 250 rpm or more.
Repeat steps 1) through 3) for each cylinder.
This measurement must be done in as short a time as possible.
Compression pressure: 1,176.79kPa (12.0kgf/cm², 170.68psi) - 200 ~ 250rpm
Minimum pressure: 1,029.69kPa (10.5kgf/cm², 149.34psi)
Difference between cylinders: 98.07kPa (1.0kgf/cm², 14.22psi)
(4) If the compression pressure in 1 or more cylinders is lower than the specification above, pour a small amount
of engine oil into the cylinder through the spark plug hole, repeat the steps (1) through (3) for the cylinder and
measure the pressure again.
a. If adding oil increases the pressure up, the piston rings or cylinder bores might be worn or damaged.
b. If the pressure doesn't increase, a valve may be sticking or seating may be improper, or there may be
leakage from the gasket.
6. Reinstall the spark plugs.
7. Install the ignition coils and connect ignition coil connectors.
8. Install the surge tank.
VALVE CLEARANCE INSPECTION AND ADJUSTMENT
Inspect and adjust the valve clearance when the engine is cold (Engine coolant temperature : 20°C
±5°C(59~77°F)) and cylinder head is installed on the cylinder block.

28-y
29 -y
30 -y
31 -y
32 A/C Pressure Transducer signal input A/C Pressure Transducer (APT)
33 Sensor ground A/C Pressure Transducer (APT)
34 -y
35 -y
36 -y
37 -y
38 Battery voltage supply after main relay Main Relay
39 Battery voltage supply after main relay Main Relay
40 Battery voltage supply after main relay Main Relay
41 CAN [High] ABS/ESP Control Module
42 CAN [Low] ABS/ESP Control Module
43 Main Relay control output Main Relay
44 Intake Air Temperature Sensor signal input Intake Air Temperature Sensor (IATS)
45 Immobilizer communication line Immobilizer control module
46 -y
47 Mass Air Flow Sensor signal input Mass Air Flow Sensor (MAFS)
48 Sensor ground Accelerator Position Sensor (APS) #2
49 Accelerator Position Sensor #2 signal input Accelerator Position Sensor (APS) #2
50 -y
51 Cruise "SET" lamp control output Cruise "SET" Lamp
52 Vehicle speed signal input ABS/ESP Control Module (With ABS/ESP [Euro -
Ⅲ/Ⅳ])
Vehicle Speed Sensor (VSS) (Except Euro-
Ⅲ/Ⅳ)
53 Sensor ground Intake Air Temperature Sensor (IATS)
54 Accelerator Position Sensor #1 signal input Accelerator Position Sensor (APS) #1
55 Sensor ground Accelerator Position Sensor (APS) #1
56 -y
57 Sensor (+5V) Accelerator Position Sensor (APS) #2
58 Sensor (+5V) A/C Pressure Transducer (APT)
59 Sensor (+5V) Accelerator Position Sensor (APS) #1
60 -y
61 Engine speed signal output Cluster (Tachometer)
62 Fuel consumption signal output Trip Computer
63 Malfunction Indicator Lamp (MIL) control output Cluster (Malfunction Indicator Lamp)
64 A/C Compressor Relay control output A/C Compressor Relay
65 Cooling Fan [Low] control output Cooling Fan Relay [Low]
66 Cooling Fan [High] control output Cooling Fan Relay [High]
67 Variable Intake Solenoid Valve #2 control output Variable Intake Solenoid (VIS) Valve #2 [Intake
Manifold Side]

40Battery voltage supply after main
relay IG OFF
DCMax. 1.0 V
- 25mV
IG ON Battery Voltage12.37V
41 CAN [High] Recessive
Pulse2.0 ~ 3.0 V
2.4V
Dominant 2.75~4.5 V3.56V
42 CAN [Low] Recessive
Pulse2.0 ~ 3.0 V
2.42V
Dominant 0.5~2.25 V1.62V
43 Main Relay control output Relay ON
DCBattery Voltage
0.875V
Relay OFF Max. 1.0V12.47V
44 Intake Air Temperature Sensor
signal input Idle
Analog 0 ~ 5V 2.05V
45 Immobilizer communication line When
communicating after IG ON PulseHi: Min. 8.5V
11.87V
Lo: Max. 3.5V 875mV
46 - yy y y
47 Mass Air Flow Sensor signal
input
Idle
Pulse Hi: Vcc
4.97V
Lo: Max. 0.5V 70mV
48 Sensor ground IdleDCMax. 50 mV 22.52mV
49 Accelerator Position Sensor #2
signal input C.T
Analog 0.3 ~ 0.9V
0.38V
W.O.T 1.5 ~ 3.0V2V
50 - yy y y
51 Cruise "SET" lamp control output Cruise OFF
DCBattery Voltage
12.57V
Cruise ON Max. 1.0V- 25mV
52 Vehicle speed signal input Vehicle RunPulseHi: Min. 5.0V
11.07V
Lo: Max. 1.0V - 125mV
53 Sensor ground IdleDCMax. 50 mV 22.37mV
54 Accelerator Position Sensor #1
signal input C.T
Analog 0.3 ~ 0.9V
819mV
W.O.T 4.0 ~ 4.8V4.01V
55 Sensor ground IdleDCMax. 50mV 22.6mV
56 - yy y y
57 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.95V
IG ON 4.9 ~ 5.1V- 10mV
58 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.95V
IG ON 4.9 ~ 5.1V- 10mV
59 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.95V
IG ON 4.9 ~ 5.1V- 10mV
60 - yy y y
61 Engine speed signal output IdlePulseHi: Battery Voltage
13.57V
Lo: Max. 0.5V - 25mV
20 ~ 26Hz y
62 Fuel consumption signal output IdlePulseHi: Battery Voltage
13.57V
Lo: Max. 0.5V - 25mV
63 Malfunction Indicator Lamp (MIL)
control output Lamp OFF
DCHi: Battery Voltage
13.37V
Lamp ON Lo: Max. 2.0V- 25mV

2007 > 2.7L V6 GASOLINE >
Description
The automatic transmission is a combination of 3 - element 2 - phase 1 - stage torque converter and double shaft
electrocally - controlled unit which provides 4 speeds forward and 1 reverse. To improve the efficiency of power
transmission, the line pressure control was changed applying “Variable Force Solenoid (VFS) valve” on this model.
However, adopting VFS on this model, the line pressure is variably changed according to TPS and the vehicle speed,
this will enable more improved efficiency of power transmission and fuel consumption.
Characteristics
Some of the characteristics include:
▶Different power transfer
▶Different component layout
▶New shift logic(HIVEC) to improve shift feeling
▶Position of Valve Body
▶Variable shift pattern
▶Communication protocol and method
▶Step gate type shift lever.
Item Details
Weight Reduction 1. Aluminum oil pump
a. 2.3kg Approx
2. Pressed parts a. Retainer and hub of brakes and clutches
b. Carrier of planetary gear set
Better shift quality 1. Independent control of clutches and brakes enabled better control of
hydraulic pressure and skiped shifts (4 to 2, 3 to 1)
2. During N to D or N to R shift, feedback control adopted.
3. When starting from Creep condition, reduction of shock.(Creep condition is
controlled with 1st gear)
4. Solenoid valve frequency is increased for more accurate control. 35Hz to
61.3Hz except DCCSV that is 35Hz and VFS that is 600Hz.
5. HIVEC adoption for better shift feeling.
6. Variable shift pattern.
Increase in Power train efficiency 1. Fully Variable Line Pressure
2. VFS(Variable Force Solenoid)
- Manual shifting possible
- Step gate type shift lever

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
The fuel fired heater has been applied to the diesel engine (CRDi) to increase heating capability by using diesel only in
cold weather
a.Follow the procedures specified in this bulletin during service or it may cause personal injury.
b. Be sure to turn the fuel fired heater off when refueling at station.
c. The fuel fired heater must be mounted at designated position, never in the passenger compartment.
d. The fuel fired heater must be kept below 120°C or a permanent failure on the components may occur.
e. Operational principle : The following 3 conditions should be met at the same time for automatic operation of
the fuel fired heater.
a. Engine runs.
b. Ambient temperature is lower than 2°C (Winter)
c. Coolant temperature is lower than 68°C
f. Cleaning process
a. A cleaning process of the fuel fired heater will be performed automatically when the heater is not operated
due to increase of coolant temperature and ignition off.
b. During cleaning process, supplied fuel in the heater will be burnt completely and any smoke will be expelled.
It is a necessary process for next operation and durability of the heater and takes about 3 minutes.
g. Others
The following symptoms should be explained to customers or technicians as a normal occurrence.
a. A white smoke may come out from the fuel fired heater exhaust pipe installed at the front side of the right
front tire during operation of the heater.
This is not an exhaust fumes.
When moisture in the fuel and air is discharged from the heater and is met cold ambient air, it is condensed
and looks like a white smoke however, when an excessive black smoke is discharged, the fuel fired heater
should be inspected.
b. A "buk- buk" noise from the heater is a noise to form flame for combustion. This is a normal operation.
c. When the heater is operated at full load, a "Wooing" noise is occurred.
d. When shutting off the engine during heater operation, a "Wing" noise is occurred to perform the cleaning
process.
OVERVIEW
1.This fuel fired heater supplies additional heat to the interior compartment with a low fuel consumption to
compensate the heat provided by engine alone.
2. The fuel fired heater has been adopted to warm up the interior compartment in a short time.

2007 > 2.7L V6 GASOLINE >
SPECIFICATIONS
ITEM OPERATION STATESPECIFICATION
Fuel fired heater body Heater discharge
Full load
5.0kw
Half load 2.5kw
Full load Diesel
Fuel consumption Full load
0.63 l/h
Half load 0.32 l/h
Rated voltage y12.0V
Operation voltage range y9.5V~15.0V
Power consumption Full load
37w(Normal)
Half load 13w(Normal)
Permissible ambient temperature At operation
- 40°C~80°C
At storage - 40°C~120°C
Permissible operation pressure y
0.4bar ~ 2.5bar
Minimum coolant flow volume y
250 l/h
Permissible CO₂ value y 8~13 vol %
ITEM SPECIFICATION
Dosing pump Rated voltage
12.0V
Operation voltage range 9.0V ~ 15.0V
Maximum power consumption 4w(Normal)
ITEM SPECIFICATION
Ambient switch Rated voltage
12.0V
Temperature of ON/OFF ON : 2°C(Tolerance : + 3°C, - 2°C)
OFF : 8°C(Tolerance : + 2°C, - 3°C)

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
The trip computer displays information related to driving, including compass, distance to empty, elapsed time, average
fuel consumption and outside temperature on the display. To change the function as described below, push the MODE
button lesser than 2 sec. Distance to empty → elapsed time → average fuel consumption → outside temperature →
OFF.
Compass is always displayed except for OFF mode.
OPERATION
1. COMPASS
The vehicle compass displays the direction (8 directions) where the vehicle is heading. Compass is displayed when
driving.
2.DISTANCE TO EMPTY
This mode indicates the estimated distance to empty based on the current fuel in the fuel tank and the amount of
fuel delivered to the engine. The meter’s working range is from 30 to 1500 miles (50 to 1500 km) by the 1km or
1mile.
When the remaining distance is below 30 miles (50km), a blinking “ - - - - ” symbol will be displayed.
The unit can be changed by press the reset button for more than 4 sec. If the unit of distance to empty is changed,
the unit of average fuel consumption is changed together.
3.ELAPSED TIME
This mode indicate the total time traveled since the last driving time reset while the engine is running.
Press the reset button for less than 4sec, clears the driving time to zero.

4.AVERAGE FUEL CONSUMPTION
This mode calculates the average fuel consumption from the total used fuel and the distance. The meter's working
range is from 0.0 to 99.9 L/100km or MPG(mile per gallon).
Press the reset button for less than 4 sec, when the average fuel consumption is being displayed, clears the
average fuel consumption to “ - - “ until the vehicle is moved to 0.3 miles(500m).
The unit can be changed by press the reset button for more than 4 sec. If the unit of average fuel consumption is
changed, the unit of distance to empty is changed together.
5.OUTSIDE AMBIENT TEMPERATURE
This mode indicates the outside temperature around the vehicle form - 40°C to 60°C (from - 40°F to 140°F).
The unit can be changed by press the reset button for more than 4 sec.