2008 Kia Sorento 3.8L Service & Repair Manual

SORENTO(BL) >2008 > G 3.8 DOHC > Fuel System REMOVAL 1. Turn ignition switch off and disconnect the battery (-) cable from the battery. 2. Disconnect the accelerator position sensor connector (A). 3. Unfasten the mounting bolt/nuts (B) and remove the accelerator pedal from the vehicle. INSTALLATION 1. Install the accelerator pedal in according to the reverse order of "REMOVAL" procedure. Accelerator pedal mounting nuts: 7.8 ~ 11.8N·m (0.8 ~ 1.2kgf·m, 5.8 ~ 8.7lbf·ft) Page 1 of 1

SORENTO(BL) >2008 > G 3.8 DOHC > Fuel System INSPECTION FUNCTION AND OPERATION PRINCIPLE Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the diagnostic system judges that it is abnormal. SPECIFICATION Pedal Position Output Voltage (V) [Vref = 5.0V] APS1 APS2 C.T 0.7 ~ 0.8 0.28 ~ 0.48 W.O.T 3.8 ~ 4.4 1.75 ~ 2.35 Item Sensor Resistance APS1 0.7 ~ 1.3kΩ at 20°C (68°F) APS2 1.4 ~ 2.6kΩ at 20°C (68°F) SCHEMATIC DIAGRAM Page 1 of 4

COMPONENT INSPECTION 1. Connect a scan tool to the Diagnosis Link Connector (DLC). 2. Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T. Specification: Refer to SPECIFICATION. 3. Turn ignition switch OFF and disconnect the scantool from the DLC. 4. Disconnect APS connector and measure resistance between APS terminals 5 and 6 (APS 1). Specification: Refer to SPECIFICATION. 5. Disconnect APS connector and measure resistance between APS terminals 3 and 4 (APS 2). Specification: Refer to SPECIFICATION. INSPECTION FUNCTION AND OPERATION PRINCIPLE Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the Page 2 of 4

accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the diagnostic system judges that it is abnormal. SPECIFICATION Pedal Position Output Voltage (V) [Vref = 5.0V] APS1 APS2 C.T 0.7 ~ 0.8 0.28 ~ 0.48 W.O.T 3.8 ~ 4.4 1.75 ~ 2.35 Item Sensor Resistance APS1 0.7 ~ 1.3kΩ at 20°C (68°F) APS2 1.4 ~ 2.6kΩ at 20°C (68°F) SCHEMATIC DIAGRAM COMPONENT INSPECTION 1. Connect a scan tool to the Diagnosis Link Connector (DLC). 2. Start engine and check output voltages of APS 1 and 2 at C.T and W.O.T. Specification: Refer to SPECIFICATION. 3. Turn ignition switch OFF and disconnect the scantool from the DLC. 4. Disconnect APS connector and measure resistance between APS terminals 5 and 6 (APS 1). Specification: Refer to SPECIFICATION. Page 3 of 4

5. Disconnect APS connector and measure resistance between APS terminals 3 and 4 (APS 2). Specification: Refer to SPECIFICATION. Page 4 of 4

SORENTO(BL) >2008 > G 3.8 DOHC > Fuel System INSPECTION FUNCTION AND OPERATION PRINCIPLE Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of each cylinder which the CKPS can't detect. The two CMPS are installed on engine head cover of bank 1 and 2 and uses a target wheel installed on the camshaft. This sensor has a hall-effect IC which output voltage changes when magnetic field is made on the IC with current flow. So the sequential injection of the 6 cylinders is impossible without CMPS signal. SPECIFICATION Item Specification Output Voltage (V) High : 5.0V Low : 0 ~ 0.7V Air Gap (mm) 0.5 ~ 1.5 WAVEFORM Page 1 of 2

SCHEMATIC DIAGRAM COMPONENT INSPECTION 1. Check signal waveform of CMPS and CKPS using a scantool. Specification: Refer to "WAVE FORM" Page 2 of 2

SORENTO(BL) >2008 > G 3.8 DOHC > Fuel System COMPONENT LOCATION 1. ECM (Engine Control Module) 2. Mass Air Flow Sensor (MAFS) 3. Intake Air Temperature Sensor (IATS) Page 1 of 5

4. Manifold Absolute Pressure Sensor (MAPS) 17. ETC Module [Throttle Position Sensor (TPS) + ETC Motor] 5. Engine Coolant Temperature Sensor (ECTS) 6. Camshaft Position Sensor (CMPS) [Bank 1] 7. Camshaft Position Sensor (CMPS) [Bank 2] 8. Crankshaft Position Sensor (CKPS) 9. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] 10. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] 11. Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 1] 12. Heated Oxygen Sensor (HO2S) [Bank 2 / Sensor 2] Page 2 of 5

13. Knock Sensor (KS) [Bank1] 14. Knock Sensor [Bank 2] 15. Injector 25. Ignition Coil 16. Accelerator Position Sensor (APS) 18. CVVT Oil Control Valve (OCV) [Bank 1] 19. CVVT Oil Control Valve (OCV) [Bank 2] 20. CVVT Oil Temperature Sensor (OTS) 21. Purge Control Solenoid Valve (PCSV) Page 3 of 5

2008 Kia Sorento 3.8L Service & Repair Manual

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