Volkswagen New Beetle. Manual - part 1392

 

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Volkswagen New Beetle. Manual - part 1392

 

 

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Press -Q- button to enter input. 

Display will appear as shown 

Fig. 112: Scan Tool Display - Boost Pressure Control (4 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Accelerate vehicle in 3rd gear from about 1500 RPM under Wide Open Throttle.  

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Press PRINT button on VAG1551 at about 3000 RPM.  

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Specification on VAG1551: 1720 to 2300 mbar (Display zone 3) 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 113: Scan Tool Display - Boost Pressure Control (5 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

If measured Boost pressure is too low 

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Check -N75- as follows:  

Wastegate bypass regulator valve -N75-, electrically checking 

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Switch OFF ignition.  

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Disconnect -N75- harness connector. See DIESEL INJECTION SYSTEM, COMPONENT 
LOCATIONS OVERVIEW
 .  

 

2003 Volkswagen New Beetle GLS 

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

  

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Switch Fluke 83 multimeter to resistance range.  

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Measure resistance between -N75- terminals using multimeter. 

Fig. 114: Measuring Resistance Between Wastegate Bypass Regulator Valve -N75- Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Specification: 14 to 20 ohm  

If specification not obtained: 

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Replace Wastegate Bypass Regulator valve - N75-.  

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Display the Readiness code. See READINESS CODE, DISPLAYING .  

If DTC memory was erased: 

 

2003 Volkswagen New Beetle GLS 

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

  

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Set the readiness code. See READINESS CODE, SETTING .  

Wastegate Bypass regulator valve -N75- Voltage supply, checking 

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Switch OFF ignition.  

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Disconnect harness connector off valve. See DIESEL INJECTION SYSTEM, COMPONENT 
LOCATIONS OVERVIEW
 .  

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Connect Fluke 83 multimeter between terminal 1 and Ground using jumper wires from VW 1594 Adapter 
kit. 

Fig. 115: Identifying Wastegate Bypass Regulator Valve -N75- Harness Connector Terminals 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Switch Fluke 83 multimeter to 20 Volt range.  

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Switch ON ignition.  

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

Content   ..  1390  1391  1392  1393   ..