Volkswagen New Beetle. Manual - part 1339

 

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Volkswagen New Beetle. Manual - part 1339

 

 

Fig. 122: Scan Tool Display - Mass Air Flow Sensor (5 Of 7) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

If specification not obtained: 

z

Repeat test and accelerate vehicle under Wide Open Throttle.  

z

Specification in Display zone 1: above 800 mg/H 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

Fig. 123: Scan Tool Display - Mass Air Flow Sensor (6 Of 7) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

If specification not obtained: 

z

Replace Mass Air Flow Sensor -G70-.  

z

Display the Readiness code. See READINESS CODE, DISPLAYING .  

If DTC memory was erased: 

z

Set the readiness code. See READINESS CODE, SETTING .  

If 550 mg/H is constantly displayed in zone 1. 

z

Press --> button.  

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

Display will appear as shown: 

Fig. 124: Scan Tool Display - Mass Air Flow Sensor (7 Of 7) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

z

Press -0- and -6- buttons to select Function 06: "End output".  

z

Press -Q- button to enter input.  

z

Switch OFF ignition.  

z

Disconnect -G70- harness connector. See DIESEL INJECTION SYSTEM, COMPONENT 
LOCATIONS OVERVIEW
 .  

z

Switch ON ignition.  

z

Switch multimeter to 20 Volt range.  

z

Measure -G70- voltage supply between the following connector terminals: 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

Fig. 125: Identifying MAF Sensor -G70- Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

MAF SENSOR TERMINAL SPECIFICATION CHART 

If specifications not obtained: 

z

Switch OFF ignition.  

z

Connect VAG1598/22 (or 1598/31) Test Box to ECM wiring harness. 

Terminal: -G70-

Specification

2 + Ground

App. battery Voltage

2 + 3

App. battery Voltage

4 + Ground

Approx. 5 Volts

4 + 3

Approx. 5 Volts

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Diesel Fuel Injection, 1.9L ALH - New Beetle

  

 

 

 

 

 

 

 

Content   ..  1337  1338  1339  1340   ..