Kia Carnival (2009+). Manual — part 238

3. Voltage Check Method

A. With each connector still connected, measure the voltage between the chassis ground and terminal 1 of each

connectors (A), (B) and (C) as shown in [FIG. 4].
The measured voltage of each connector is 5V, 5V and 0V respectively. So the open circuit is between
connector (C) and (B).

! CHECK SHORT CIRCUIT

1. Test Method for Short to Ground Circuit

A. Continuity Check with Chassis Ground

If short to ground circuit occurs as shown in [FIG. 5], the broken point can be found by performing Step 2
(Continuity Check Method with Chassis Ground) as shown below.

2. Continuity Check Method (with Chassis Ground)

Lightly shake the wire harness above and below, or from side to side when measuring the resistance.

Specification (Resistance)
1" or less # Short to Ground Circuit
1M" or Higher # Normal Circuit

A. Disconnect connectors (A), (C) and measure for resistance between connector (A) and Chassis Ground as

shown in [FIG. 6].
The measured resistance of line 1 and 2 in this example is below 1 " and higher than 1M" respectively.
Specifically the short to ground circuit is line 1 (Line 2 is normal). To find exact broken point, check the sub line
of line 1 as described in the following step.

B. Disconnect connector (B), and measure the resistance between connector (A) and chassis ground, and

between (B1) and chassis ground as shown in [FIG. 7].
The measured resistance between connector (B1) and chassis ground is 1" or less. The short to ground circuit
is between terminal 1 of connector (C) and terminal 1 of connector (B1).

SYMPTOM TROUBLESHOOTING GUIDE CHART

MAIN SYMPTOM

DIAGNOSTIC PROCEDURE

ALSO CHECK FOR

Unable to start
(Engine does not turn
over)

1. Test the battery
2. Test the starter
3. Inhibitor switch (A/T) or clutch start switch (M/T)

Unable to start
(Incomplete
combustion)

1. Test the battery
2. Check the fuel pressure
3. Check the ignition circuit
4. Troubleshooting the immobilizer system (In case of

immobilizer lamp flashing)

• DTC
• Low compression
• Intake air leaks
• Slipped or broken timing belt
• Contaminated fuel

Difficult to start

1. Test the battery
2. Check the fuel pressure
3. Check the ECTS and circuit (Check DTC)
4. Check the ignition circuit

• DTC
• Low compression
• Intake air leaks
• Contaminated fuel
• Weak ignition spark

Poor idling
(Rough, unstable or
incorrect Idle)

1. Check the fuel pressure
2. Check the Injector
3. Check the long term fuel trim and short term fuel trim

(Refer to CUSTOMER DATASTREAM)

4. Check the idle speed control circuit (Check DTC)
5. Inspect and test the Throttle Body
6. Check the ECTS and circuit (Check DTC)

• DTC
• Low compression
• Intake air leaks
• Contaminated fuel
• Weak ignition spark

Engine stall

1. Test the Battery
2. Check the fuel pressure
3. Check the idle speed control circuit (Check DTC)
4. Check the ignition circuit
5. Check the CKPS Circuit (Check DTC)

• DTC
• Intake air leaks
• Contaminated fuel
• Weak ignition spark

Poor driving
(Surge)

1. Check the fuel pressure
2. Inspect and test Throttle Body
3. Check the ignition circuit
4. Check the ECTS and Circuit (Check DTC)
5. Test the exhaust system for a possible restriction
6. Check the long term fuel trim and short term fuel trim

(Refer to CUSTOMER DATASTREAM)

• DTC
• Low compression
• Intake air leaks
• Contaminated fuel
• Weak ignition spark

Knocking

1. Check the fuel pressure
2. Inspect the engine coolant
3. Inspect the radiator and the electric cooling fan
4. Check the spark plugs

• DTC
• Contaminated fuel

Poor fuel economy

1. Check customer's driving habits

• Is A/C on full time or the defroster mode on?
• Are tires at correct pressure?
• Is excessively heavy load being carried?
• Is acceleration too much, too often?

2. Check the fuel pressure
3. Check the injector
4. Test the exhaust system for a possible restriction
5. Check the ECTS and circuit

• DTC
• Low compression
• Intake air leaks
• Contaminated fuel
• Weak ignition spark

Hard to refuel
(Overflow during
refueling)

1. Test the canister close valve
2. Inspect the fuel filler hose/pipe

• Pinched, kinked or blocked?
• Filler hose is torn

3. Inspect the fuel tank vapor vent hose between the

EVAP. canister and air filter

4. Check the EVAP. canister

• Malfunctioning gas station

filling nozzle (If this problem
occurs at a specific gas
station during refueling)

2009 > G 2.7 DOHC >

SPECIFICATIONS

FUEL DELIVERY SYSTEM

Items

Specification

Fuel Tank

Capacity

80 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/cm!, 54.3 ~ 55.8 psi)

Fuel Pump

Type

Electrical, in-tank type

Driven by

Electric motor

SENSORS

MASS AIR FLOW SENSOR (MAFS)
▷ Type: Hot-film type

▷ 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)
▷ Type: Thermistor type

▷ Specification

Temperature

Resistance (k!)

°C

°F

-40

-40

100.87

-20

-4

28.58

0

32

9.40

10

50

5.66