fuel pressure KIA CARNIVAL 2007 Workshop Manual

noise,regardless of
engine speed.Loose or damaged drive plate.
Repair or replace the drive plate.
Damaged oil pan, contacting the oil pump
screen. a.
Inspect the oil pan.
b. Inspect the oil pump screen.
c. Repair or replace as required.
Oil pump screen loose, damaged or
restricted. a.
Inspect the oil pump screen.
b. Repair or replace as required.
Excessive piston- to- cylinder bore clearance. a.Inspect the piston, piston pin and cylinder
bore.
b. Repair as required.
Excessive piston pin- to- piston clearance. a.Inspect the piston, piston pin and the
connecting rod.
b. Repair or replace as required.
Excessive connecting rod bearing clearance Inspect the following components and repair
as required.
a. The connecting rod bearings.
b. The connecting rods.
c. The crankshaft pin journals.
Excessive crankshaft bearing clearance. Inspect the following components, and repair
as required.
a. The crankshaft bearings.
b. The crankshaft main journals.
c. The cylinder block.
Incorrect piston, piston pin and connecting rod
installation a.
Verify the piston pins and connecting rods
are installed correctly.
b. Repair as required.
Engine noise under
load. Low oil pressure
Repair or replace as required.
Excessive connecting rod bearing clearance . Inspect the following components and repair
as required :
a. The connecting rod bearings.
b. The connecting rods.
c. The crankshaft.
Excessive crankshaft bearing clearance. Inspect the following components, and repair
as required.
a. The crankshaft bearings.
b. The crankshaft main journals.
c. The cylinder block.
Engine will not crank-
crankshaft will not
rotate. Hydraulically locked cylinder.
a. Coolant/antifreeze in cylinder.
b. Oil in cylinder.
c. Fuel in cylinder. a.
Remove spark plugs and check for fluid.
b. Inspect for broken head gasket.
c. Inspect for cracked engine block or
cylinder head.
d. Inspect for a sticking fuel injector and/or
leaking fuel regulator.
Broken timing chain and/or timing chain
and/or timing chain gears. a.
Inspect timing chain and gears.
b. Repair as required.
Material in cylinder. a. Broken valve
b. Piston material
c. Foreign material a.
Inspect cylinder for damaged components
and/or foreign materials.
b. Repair or replace as required.

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.

5.Remove the fuel inlet hose(A) from the delivery pipe.
6.Disconnect the engine wiring harness connectors.
(1) Disconnect the No.1/No.2 knock sensor connectors(A,B), the oil pressure switch connector(C), the ignition coil
harness(D) and the No.1 VIS(Variable Induction System) connector(E).
(2)Disconnect the bank 1 front/rear O2 sensor connectors(A).
(3)Disconnect the injection connectors(A,B,C), the ground lines(D), the condensor connector(E) and the Ignition
coil connectors(F).

(9)Connect the No.1/No.2 knock sensor connectors(A,B), the oil pressure switch connector(C), the ignition coil
harness(D) and the No.1 VIS(Variable Induction System) connector(E).
23. Install the fuel inlet hose(A) from the delivery pipe.
24.Install the upper radiator hose(A) and lower radiator hose(B).
25.Install the intake air hose and air cleaner assembly.
(1) Install the intake air hose and air cleaner assembly(C).

2007 > 2.7L V6 GASOLINE >
DESCRIPTION
The CVVT (Continuously Variable Valve Timing) which is installed on the exhaust camshaft controls intake valve open
and close timing in order to improve engine performance.
The intake valve timing is optimized by CVVT system depending on engine rpm.
This CVVT system improves fuel efficiency and reduces NOx emissions at all levels of engine speed, vehicle speed,
and engine load by EGR effect because of valve over - lap optimization.
The CVVT changes the phase of the intake camshaft via oil pressure.
It changes the intake valve timing continuously.
OPERATION
The CVVT system makes continuous intake valve timing changes based on operating conditions.
Intake valve timing is optimized to allow the engine to produce maximum power.
Cam angle is advanced to obtain the EGR effect and reduce pumping loss. The intake valve is closed quickly to
reduce the entry of the air/fuel mixture into the intake port and improve the changing effect.
Reduces the cam advance at idle, stabilizes combustion, and reduces engine speed.
If a malfunction occurs, the CVVT system control is disabled and the valve timing is fixed at the fully retarded position.

2007 > 2.7L V6 GASOLINE >
SPECIAL SERVICE TOOLS
Tool
(Number and name) Illustration
Application
09353 - 24100
Fuel Pressure Gauge
Measuring the fuel line pressure
09353 - 38000
Fuel Pressure Gauge
Adapter
Connection between the delivery pipe and
fuel feed line
09353 - 24000
Fuel Pressure Gauge
Connector
Connection between Fuel Pressure Gauge
(09353- 24100) and Fuel Pressure Gauge
Adapter (09353- 38000)

MAIN SYMPTOMDIAGNOSTIC PROCEDURE ALSO CHECK FOR
Unable to start
(Engine does not turn
over) a.
Test the battery
b. Test the starter
c. Inhibitor switch (A/T) or clutch start switch (M/T)
Unable to start
(Incomplete
combustion) a.
Test the battery
b. Check the fuel pressure
c. Check the ignition circuit
d. Troubleshooting the immobilizer system (In case of
immobilizer lamp flashing) a.
DTC
b. Low compression
c. Intake air leaks
d. Slipped or broken timing belt
e. Contaminated fuel
Difficult to start a.
Test the battery
b. Check the fuel pressure
c. Check the ECTS and circuit (Check DTC)
d. Check the ignition circuit a.
DTC
b. Low compression
c. Intake air leaks
d. Contaminated fuel
e. Weak ignition spark
Poor idling
(Rough, unstable or
incorrect Idle) a.
Check the fuel pressure
b. Check the Injector
c. Check the long term fuel trim and short term fuel trim
(Refer to CUSTOMER DATASTREAM)
d. Check the idle speed control circuit (Check DTC)
e. Inspect and test the Throttle Body
f. Check the ECTS and circuit (Check DTC) a.
DTC
b. Low compression
c. Intake air leaks
d. Contaminated fuel
e. Weak ignition spark
Engine stall a.
Test the Battery
b. Check the fuel pressure
c. Check the idle speed control circuit (Check DTC)
d. Check the ignition circuit
e. Check the CKPS Circuit (Check DTC) a.
DTC
b. Intake air leaks
c. Contaminated fuel
d. Weak ignition spark
Poor driving
(Surge) a.
Check the fuel pressure
b. Inspect and test Throttle Body
c. Check the ignition circuit
d. Check the ECTS and Circuit (Check DTC)
e. Test the exhaust system for a possible restriction
f. Check the long term fuel trim and short term fuel trim
(Refer to CUSTOMER DATASTREAM) a.
DTC
b. Low compression
c. Intake air leaks
d. Contaminated fuel
e. Weak ignition spark
Knocking a.
Check the fuel pressure
b. Inspect the engine coolant
c. Inspect the radiator and the electric cooling fan
d. Check the spark plugs a.
DTC
b. Contaminated fuel
Poor fuel economy a.
Check customer's driving habits
a. Is A/C on full time or the defroster mode on?
b. Are tires at correct pressure?
c. Is excessively heavy load being carried?
d. Is acceleration too much, too often? a.
DTC
b. Low compression
c. Intake air leaks

b.Check the fuel pressure
c. Check the injector
d. Test the exhaust system for a possible restriction
e. Check the ECTS and circuit d.
Contaminated fuel
e. Weak ignition spark
Hard to refuel
(Overflow during
refueling) a.
Test the canister close valve
b. Inspect the fuel filler hose/pipe
a. Pinched, kinked or blocked?
b. Filler hose is torn
c. Inspect the fuel tank vapor vent hose between the
EVAP. canister and air filter
d. Check the EVAP. canister a.
Malfunctioning gas station
filling nozzle (If this problem
occurs at a specific gas
station during refueling)

2007 > 2.7L V6 GASOLINE >
SPECIFICATIONS
FUEL DELIVERY SYSTEM
Items Specification
Fuel Tank Capacity80 lit. (21.1 U.S.gal., 17.6 Imp.gal.)
Fuel Filter (built in Fuel Pump
assembly) Type
High pressure type
Fuel Pressure Regulator (built in
Fuel Pump assembly) Regulated Fuel
Pressure 375 ~ 385 kPa(3.82 ~ 3.92 kgf/cm², 54.3 ~ 55.8 psi)
Fuel Pump Type
Electrical, in - tank type
Driven by Electric motor
SENSORS
MASS AIR FLOW SENSOR (MAFS)
J Type: Hot - film type
J Specification
Air Flow (kg/h) Frequency (Hz)
12.6 kg/h 2,617Hz
18.0 kg/h 2,958Hz
23.4 kg/h 3,241Hz
32.4 kg/h 3,653Hz
43.2 kg/h 4,024Hz
57.6 kg/h 4,399Hz
72.0 kg/h 4,704Hz
108.0 kg/h 5,329Hz
144.0 kg/h 5,897Hz
198.0 kg/h 6,553Hz
270.0 kg/h 7,240Hz
360.0 kg/h 7,957Hz
486.0 kg/h 8,738Hz
666.0 kg/h 9,644Hz
900.0 kg/h 10,590Hz
INTAKE AIR TEMPERATURE SENSOR (IATS)
J Type: Thermistor type
J Specification Temperature Resistance (kΩ)
°C °F
- 40 - 40100.87
- 20 -428.58
0 329.40
10 505.66

Heated oxygen sensor (Bank 2 / Sensor 2) installation3.5 ~ 4.534.3 ~ 44.1 25.3 ~ 32.6
Ignition coil installation bolt 1.0 ~ 1.29.8 ~ 11.8 7.2 ~ 8.7
Knock sensor [Bank 1] installation 1.9 ~ 2.418.6 ~ 23.5 13.7 ~ 17.4
Knock sensor [Bank 2] installation 1.9 ~ 2.418.6 ~ 23.5 13.7 ~ 17.4
Manifold absolute pressure sensor installation bolt 0.8 ~ 1.27.8 ~ 11.8 5.8 ~ 8.7
FUEL DELIVERY SYSTEM Item kgf·mN·mIbf·ft
Fuel tank band mounting nuts 4.0 ~ 5.539.2 ~ 53.9 28.9 ~ 39.8
Fuel pump assembly mounting bolts 0.2 ~ 0.32.0 ~ 2.91.4 ~ 2.2
Delivery pipe installation bolts 0.9 ~ 1.48.8 ~ 13.7 6.5 ~ 10.1
Accelerator pedal module installation bolts 1.3 ~ 1.612.8 ~ 15.7 9.4 ~ 11.6