Volkswagen New Beetle. Manual - part 1567

 

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Volkswagen New Beetle. Manual - part 1567

 

 

Fig. 32: Identifying Ignition Coil 6-Pin Harness Connector Terminals (Engine Code AVH, AZG, 
BDC)
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Operate starter and test ignition signal from Engine Control Module (ECM). LED should flicker.  

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Switch ignition off. 

If LED flickers and voltage supply is OK: 

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Replace ignition coil with power output stage (-N70-, -N127-, -N291-, -N292-). See item 2 .  

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Erase DTC memory of Engine Control Module (ECM). See DIAGNOSTIC MODE 4: RESET/ERASE 
DIAGNOSTIC DATA
 .  

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Generate readiness code. See READINESS CODE, GENERATING . 

If LED does not flicker: 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Ignition-Glow Plug System, 2.0L Generic Scan Tool - New Beetle

  

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Check wires. See CHECKING WIRING .  

Checking wiring 

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Connect test box to control module wiring harness. See TEST BOX FOR WIRING TEST, 
CONNECTING
 .  

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Check wires between test box and 6-pin connector for open circuit according to wiring diagram. 

Cylinder 1 terminal 2 + socket 102 

Cylinder 2 terminal 3 + socket 95 

Cylinder 3 terminal 4 + socket 103 

Cylinder 4 terminal 5 + socket 94 

Wire resistance: max. 1.5ohm 

Fig. 33: Identifying Ignition Coil 6-Pin Harness Connector Terminals (Engine Code AVH, AZG, 
BDC)
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Also check wires for short circuit to each other. Specified value: INFINITY ohm 

If there is no malfunction in wire connections: 

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Replace Motronic Engine Control Module (ECM) -J220-. See REPLACING ENGINE CONTROL 
MODULE (ECM)
 .  

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Ignition-Glow Plug System, 2.0L Generic Scan Tool - New Beetle

  

1998-2004 ENGINE

Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD) 

INJECTION SYSTEM, SERVICING 

COMPONENT LOCATIONS OVERVIEW 

Engine code AEG 

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Engine codes AVH, AZG. See ENGINE CODES AVH, AZG  

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Engine codes BDC, BGD. See ENGINE CODES BDC AND BGD  

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Engine code BEV. See ENGINE CODE BEV  

1. EVAP canister purge regulator valve -N80- 

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EVAP system. See EVAP SYSTEM COMPONENTS, SERVICING :  

2. 4-pin harness connector 

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Black  

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For Heated Oxygen Sensor (HO2S) -G39- and Oxygen Sensor (O2S) heater -Z19-  

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Connector terminals 3 and 4 are gold-plated  

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Right underside of vehicle  

3. 4-pin harness connector 

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Brown  

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for Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) -G130- and Oxygen 
Sensor (O2S) heater 1 Behind Three Way Catalytic Converter (TWC) -Z29-  

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Connector terminals 3 and 4 are gold-plated  

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Right underside of vehicle  

4. Throttle valve control module -J338- 

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When replacing, adapt (match) engine control module to throttle valve control module and to 
electronic immobilizer. See COMPONENTS AND FUNCTIONS, ADAPTING  

5. Motronic Engine Control Module (ECM) -J220- 

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Installed location: Under left side inner plenum chamber cover in passenger compartment  

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On replacement, control module must be matched to electronic immobilizer. See COMPONENTS 
AND FUNCTIONS, ADAPTING
 , Adapting components  

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Replacing. See ENGINE CONTROL MODULE  

6. Mass Air Flow (MAF) sensor -G70-, with Intake Air Temperature (IAT) sensor -G42-  

7. Secondary Air Injection (AIR) solenoid valve -N112- 

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Removing and installing. See SECONDARY AIR SYSTEM COMPONENTS, REMOVING 

NOTE:

The following list refers to items in Fig. 1 .

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)

  

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)

  

AND INSTALLING  

8. Engine Coolant Temperature (ECT) sensor -G62- 

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For engine control module  

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With ECT sensor -G2-  

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If necessary, release pressure in cooling system before removing  

9. Secondary Air Injection (AIR) pump motor -V101- 

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Removing and installing. See SECONDARY AIR SYSTEM COMPONENTS, REMOVING 
AND INSTALLING
  

10. Injectors -N30- to -N33- 

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Air shrouded  

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Checking injectors for leaks and quantity injected. See COMPONENTS, CHECKING  

11. Engine Speed (RPM) sensor -G28- 

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Inductive type sensor  

12. Ignition coils -N-, -N128- 

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With Power output stage -N122-. See ENGINE CODE AEG (item - 12 -).  

13. 3-pin harness connector 

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Gray  

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For Engine speed sensor -G28-  

14. Knock Sensor (KS) 2 -G66- 

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See ENGINE CODE AEG (item - 5 -)  

15. Knock Sensor (KS) 1 -G61- 

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See ENGINE CODE AEG (item - 7 -)  

16. Fuel pressure regulator  

17. Camshaft Position (CMP) sensor -G40- 

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See ENGINE CODE AEG (item - 9 -) 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE Multiport Fuel Injection (MFI) - New Beetle, 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)

  

 

 

 

 

 

 

 

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