Published by Hyundai Motor company, september Centennial ENGINE Published by Hyundai Motor company, september 2005

2 2 SPECIFICATION ITEM3.5 L4.5 L FUEL SYSTEMMPI ENGINE NAMESIGMAOMEGA ENGINE CODEG6CUG8AB DISPLACEMENT(cc) BORE X STROKE(mm)93.0 X X 96.8 FIRING ORDER MAX. TORQUE(kg.m/rpm)31.3/ /4500 MAX. POWER(ps/rpm)212/ /5500 COMPRESSION RATIO10 : 1 COMPRESSION PRESSURE(kg/cm 2 ) VALVE SYSTEMDOHC, HLA IGNITION SYSTEMDLI IDLE RPM * MAX. POWER AND TORQUE ARE BASED ON THE GENERAL MARKET

3 3 ENGINE PERFORMANCE CHART(REFERENCE) 3.5 MPI 4.5 MPI

ENGINE

5 5 CYLINDER HEAD SECTION VIEW(MPI)

6 6 PART LOCATION ENG T/M Battery Eng. room J/B Eng. room J/B APS ECM Control Relay Control Relay ETS Relay, Injector Driver Relay ETS Relay, Injector Driver Relay ETS ECM TCM A/T Relay

7 7 E C M

8 8 CONTROL RELAY

9 9 T C M (4.5 ONLY)

10 A/T RELAY

11 AUTO TENSIONER DRIVE BELT

12 INPUT, OUTPUT Input Oxygen sensor Air Flow Sensor MAP Sensor(Europe) IAT Sensor TP Sensor CKP Sensor CMP Sensor ECT Sensor Ignition Switch Battery A/C Switch VSS Power Steering S/W Knock Sensor Cranking Signal ECMECM Output Injector EGR Valve Purge Control Valve Oxygen Sensor Heater A/C Relay Control Relay Fuel Pump Relay Engine Check Lamp Radiator Fan Duty ETS Communication DLC

13 ECM INPUT ELEMENT INJECTOR DRIVE SIGNAL INJECTOR FUEL FILTER FUEL PIPE P PRESSURE REGULATOR LOW PRESSURE PUMP FUEL SYSTEM (MPI)

14 INJECTOR CIRCUIT

15 DELIVERY PIPE & INJECTOR InjectorDelivery pipe Fuel Pressure Regulator (Return fuel system) Throttle Body ETS Motor

16 4 Front oxygen sensor Rear oxygen sensor Control relay ECM B01 B07 D15 C01 B13 D26 C03 B13 Battery Front oxygen sensor heating Ground Rear oxygen sensor Ground OXYGEN SENSOR Rear oxygen sensor heating

17 1. CRANKSHAFT POSITION SENSOR AND CAMSHAFT POSITION SENSOR - HALL IC type sensor - 2 sensors for each CMP SENSOR CKP SENSOR H L H L LHHLLLHH 1 REV. OF CRANKSHAFT IGNITION SYSTEM AND FUNCTION

18 CRANKSHAFT POSITION SENSOR CKP-1 CKP-2

19 CRANKSHAFT POSITION SENSOR

20 CAMSHAFT POSITION SENSOR

21 CAMSHAFT POSITION SENSOR CMP-1 CMP-2

22 CAMSHAFT POSITION SENSOR

23 CKP-1 CMP-1 CKP-2 CMP-2 SIG _ _ _ _ Control relay ECM B01 B07 B05 B16 C25 C04 Battery CKP-1 CMP -1 CKP-2 CMP -2 CAMSHAFT & CRANKSHAFT POSITION SENSOR

24 CKP CMP CAMSHAFT & CRANKSHAFT POSITION SENSOR

25 2. IGNITION COIL AND POWER TRANSISTOR - Ignition coil for each cylinder - Power transistor is inside of coil - ECM switch on and off of power Transistor base terminal 3. IG FAILURE SENSOR - Supply power to ignition coil - Detects engine RPM - Fault detection of ignition signal 4. FIRING ORDER IGNITION SYSTEM AND FUNCTION

26 5. Spark plug - Prevent carbon deposit at low temperature 6. Basic Ignition timing - MPI : BTDC 5 0 ± KNOCK sensor - 2 knock sensor 8. Ionic current detection sensor(MPI USA,Europe only) - Misfire monitoring IGNITION SYSTEM AND FUNCTION

27 IGNITION COIL AND POWER TRANSISTOR

28 IGNITION FAILURE SENSOR(MPI)

29 KNOCK SENSOR

Published by Hyundai Motor company, september IG FAILURE SENSOR -1 IG FAILURE SENSOR-2 # 8 COIL # 5 COIL # 3 COIL # 2 COIL # 7 COIL # 6 COIL # 4 COIL # 1 COIL IG Cluster ECM B10 C11 D28 D18 D17 D05 A12 A13 A04 A03 IGNITION SIGNAL 1 IGNITION SIGNAL 2 IG COIL #8 IG COIL #5 IG COIL #3 IG COIL #2 IG COIL #7 IG COIL #6 IG COIL #4 IG COIL #1 OBD/EOBD : 8 Coils General : 4 Coils

31 IGNITION COIL AND POWER TRANSISTOR(General) Ignition coil & Power transistor 4 Ignition coils 4 Ignition coils #1 - #4 #2 - #5 #3 - #8 #6 - #7 #1 #3 #5 #7 #8 #6 #4 #2 Firing order :

32 Ionic Current Detection Sensor Ignition coil & Power transistor IGNITION COIL AND POWER TRANSISTOR(USA, Europe) 8 Ignition Coils 2 Ionic Current Detection Sensors for Misfire monitoring 8 Ignition Coils 2 Ionic Current Detection Sensors for Misfire monitoring

Ignition coil(#1) Ignition coil(#3) Ignition coil(#5) Ignition coil(#7) ECM (CYL#7) ECM (CYL#5) Battery (+) GROUND ECM (CYL#3) ECM (CYL#1) SENSOR - ASENSOR - BNO Ignition coil(#8)10 Ignition coil(#6)9 Ignition coil(#4)8 Ignition coil(#2)7 ECM (CYL#2)6 ECM (CYL#4)5 Battery (+)4 GROUND3 ECM (CYL#6)2 ECM (CYL#8)1 IONIC CURRENT DETECTION SENSOR(USA, Europe)

34 IONIC CURRENT DETECTION SENSOR(USA, Europe) ECM Ignition coil #1 Ignition failure sensor 1 Ignition coil #3 Ignition coil #5 Ignition coil #7 5v B+ SENSOR - A

35 IONIC CURRENT DETECTION SENSOR(USA, Europe) ECM Ignition coil #2 Ignition failure sensor 2 Ignition coil #4 Ignition coil #6 Ignition coil #8 5v B+ SENSOR - B

36 Output signal of Ionic current detection sensor Ignition signal Current detection signal combustion V H signal > 4.2V V L signal < 0.6V VHVH VLVL IONIC CURRENT DETECTION SENSOR(USA, Europe)

37 Output signal of Ionic current detection sensor Ignition signal Current detection signal VLVL IONIC CURRENT DETECTION SENSOR(USA, Europe) Ignition coil side ECM side

38 COOLING FAN CONTROL ECMECM ECT SENSOR VSS A/C SWITCH COOLING FAN CONTROLLER + DUTY SIGNAL - Cooling fan control depends on driving condition - Controller : Fan are driven by duty signal from ECM - Fan operation noise decreased( 3~6dB ) - Electrical power consumption ( 2.5~5.5A decreased) - Fuel economy increased( 1% )

39 PWM(PULSE WIDTH MODULATION) CONTROL ECM FAN CONTROLLER B+ + 5V + _ RAD CON DUTY SIGNAL H L 256

40 COOLING FAN CONTROL 1. TPS output voltage > over 4.1V (sudden acceleration) ECT sensor < 110 : During 5second OFF 2. Engine stop & cranking : OFF 3. ECT sensor fault : 100% DUTY

41 RADIATOR FAN CONTROLLER

42 COOLING LOGIC UNIT : % 1. A/C OFF VSS ECT LESS OVER LESS OVER

43 COOLING LOGIC 2. A/C ON UNIT : % VSS ECT LESSOVER LESS OVER

44 EGR CONTROL(MPI) EGR VALVE

45 ETS(Electronic control Throttle valve) The throttle valve opening is control by throttle motor which is controlled by ETS control module. Accelerator position sensor detects the acceleration pedal position. It sends a signal to ETS control module and ECM. Throttle position sensor detects the throttle valve position. It also sends a signal to ETSCM and ECM. The throttle position sensor signal is used for feed back control. ETS system of Centennial is similar to XG ETS. The differences are - None failsafe motor - No initialization

46 ETS(Electronic control Throttle valve) Main function of ETS system 1. Idle rpm control 2. Idle up and dash pot 3. Traction control 4. Cruise control

47 ETS MOTOR AND TP SENSOR

48 ETS CONTROL MODULE

Published by Hyundai Motor company, september MPI

50 DLC CONNECTOR, RCT CONNECTOR 1. ABSCM 2. ECM 3. TCS 4. Ground 5. Ground 6. ECS 7. None 8. Head Lamp Levelg Device 9. B+ 10. L-line (A/C) 11. Vehicle speed 12. EPS 13. A/BAG 14. A/C 15. None 16. LAN (Passenger Door Module) DLC connector RCT(check) connector CAN high (Lambda eng) 2. B+ 3. I/Timing check 4. CODE SAVE (keyless entry) 5. CAN low (Lambda eng) 6. TCM(4.5) 7. ECM FLASH (Melco only 16v) 8. ECM,ETCM 9. F/PUMP 10.Ground

51 TIMING GEAR 1. Align the camshaft timing mark on camshaft cap timing mark

52 TIMING GEAR 2. Align the sprocket timing mark and camshaft timing mark......

53 TIMING MARK 3. Align timing mark between sprocket and head(Left bank).

54 TIMING MARK 4. Align timing mark between sprocket and head(Right bank)

55 TIMING BELT 5. Align timing mark between crankshaft sprocket and front case

56 TIMING BELT Check the timing mark after 8 rotation of crankshaft 6. Install the timing belt

57 TIMING MARK Checking the timing mark on the vehicle

58 TIMING MARK Checking the timing mark on the vehicle

MPI CIRCUIT CLICK!