Volkswagen New Beetle. Manual - part 1315

 

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Volkswagen New Beetle. Manual - part 1315

 

 

Fig. 21: Scan Tool Display - Start Of Injection (2 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Press -0- and -4- buttons to select Function 04: "Basic setting"  

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Press -Q- button to enter input.  

Display will appear as shown 

Fig. 22: Scan Tool Display - Start Of Injection (3 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Press -0-, -0-, -0- button to select "Display group 0".  

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Press -Q- button to enter input.  

Display will appear as shown (1 to 10 = Display zones)

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 23: Scan Tool Display - Start Of Injection (4 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Check Engine Coolant Temperature in Display zone 7.  

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Specification: less than 73 (equates to 85 °C)  

Continue check only when Engine Coolant Temperature is obtained:. 

Start of injection (in Display zone 2) is dependent on the Fuel temperature in Display zone 9. 

A. Display zone 2 Start of injection  

B. Display zone 9 Fuel temperature  

C. Specified range for Start of injection  

Fig. 24: Specification Range For Start Of Injection Graph 
Courtesy of VOLKSWAGEN OF AMERICA, INC.

 

2003 Volkswagen New Beetle GLS 

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

  

Example: 

Value 90 in Display zone 9 (B) corresponds to a numerical range from 35 to 74 in Display zone 2 (A). 

If Start of injection is outside specification, adjust as follows: 

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Remove connecting line between charge air cooler and intake manifold.  

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Remove upper toothed belt guard.  

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Loosen two injection pump sprocket mounting bolts -1-. 

Fig. 25: Locating Injection Pump Sprocket Mounting Bolts & Hub Nut 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Place 22 mm box wrench onto hub nut -2- to counter-hold pump shaft. DO NOT loosen hub nut.  

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Loosen 3rd injection pump sprocket mounting bolt and slightly turn pump shaft  

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Left = advance Start of injection  

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Right = retard Start of injection  

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Tighten new mounting bolts for injection pump sprocket. 

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20 Nm (15 ft lb)  

NOTE:

If, when checking Start of injection, the specifications are within zone -C-, no 
adjustment is required. After repairs, e.g. removing and installing injection 
pump or adjusting timing, Start of injection must be set to the mean value 
(dashed line) in zone -C-.

CAUTION: Do not loosen hub nut -2- for ANY reason. Otherwise, the Diesel injection 

pump basic setting will be altered and cannot be reset with normal 
workshop equipment.

 

2003 Volkswagen New Beetle GLS 

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

  

If injection pump has not previously been removed and installed

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Screw in new injection pump sprocket mounting bolts one after the other.  

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Observe values in zone 2 and adjust again, if necessary, until the mean value for specification zone -C- is 
displayed.  

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Tighten injection pump sprockets 1/ 4 turn (90 °) additional.  

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Press --> button.  

Display will appear as shown: 

Fig. 26: Scan Tool Display - Start Of Injection (5 Of 5) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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

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Press -Q- button to enter input.  

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Erase DTC memory. See DTC MEMORY, ERASING . Set the readiness code. See READINESS 
CODE, SETTING
 .  

Fuel injectors, removing and installing 

Special tools 

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VAG1331 Torque wrench (5 to 50 Nm) or equivalent 

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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