Volkswagen New Beetle. Manual - part 1663

 

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Volkswagen New Beetle. Manual - part 1663

 

 

Special tools, test equipment and auxiliary items 

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VAG 1551 scan tool or VAG 1552 mobile scan tool with VAG 1551/3B cable  

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VAG 1598/31 test box  

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VAG 1526 A or Fluke 83 multimeter  

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VAG 1594 adapter set  

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Electrical Wiring Diagram  

Test conditions 

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All fuses must be OK  

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Battery voltage must be at least 11.5 V  

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Fuel pump relay must be OK. Fuse holder is located behind access panel at far left end of dash. 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Fig. 27: Locating Fuses 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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All electrical accessories, e.g. lights and rear window defroster, must be switched off  

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If the vehicle is equipped with air conditioning, it must be turned off  

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On vehicles with automatic transmission: selector lever in "P" or "N" position  

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Engine Coolant Temperature (ECT) must be at least 80 °C, see display group 04, display zone 3  

Test sequence 

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Connect VAG 1551 scan tool ((VAG 1552). Start engine and select "Address word" 01 of Motronic 
Engine Control Module (ECM) -J220-. Engine must be running at idle speed. (Connecting scan tool and 
selecting Motronic Engine Control Module (ECM) -J220-, see VAG 1551, CONNECTING AND 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

SELECTING MOTRONIC ENGINE CONTROL MODULE (ECM) -J220- ). 

Indicated on display 

Fig. 28: Identifying Scan Tool Display - Checking MAF Sensor (1 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Press buttons -0- and -8- for function "Read measuring value block" and confirm entry with -Q- button. 

Indicated on display 

Fig. 29: Identifying Scan Tool Display - Checking MAF Sensor (2 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Press buttons -0-, -0- and -2- for "Display group number 2" and confirm entry with -Q- button. 

Indicated on display (1 to 4 Display zones)

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

Fig. 30: Identifying Scan Tool Display - Checking MAF Sensor (3 Of 3) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check Mass Air Flow drawn in display zone 4: Specification: 2.0 to 4.5 g/s  

DISPLAY GROUP 2: LOAD REGISTRATION 

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If value is as specified but DTC memory has recorded a DTC relating to Mass Air Flow (MAF) sensor, 
test power supply to Mass Air Flow (MAF) sensor, see TESTING POWER SUPPLY TO MASS AIR 
FLOW (MAF) SENSOR -G70-
 . 

If the specification is not obtained: 

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Check signal and Ground (GND) wires for Mass Air Flow (MAF) sensor, see TESTING SIGNAL AND 
GROUND (GND) WIRES FOR MASS AIR FLOW (MAF) SENSOR -G70-
 . 

If the specification is obtained: 

 

Display zones

1

2

3

4

Display group 2: Load registration
Display

xxxx RPM

xxx.x %

xx.xx ms

xxx.x g/s

Indicated

Engine speed (in steps of 

40)

Engine load

Injection 

period

Mass Air Flow drawn 

in

Operating 
range

0 to 6800/min.

12.0 to 

175.0%

0.0 to 2.0 ms

2.0 to 177.0 g/s

Specification

760--810 RPM 

(1)

 

700-750 RPM 

(2)

12.0 to 25.0%

1.5 to 4.0 ms

2.0 to 4.5 g/s

(1)

Engine idling at normal operating temperature for manual transmission

(2)

Engine idling at normal operating temperature for automatic transmission

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Multiport Fuel Injection (MFI) , 1.8L AWP, AWV - New Beetle

  

 

 

 

 

 

 

 

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