Volkswagen New Beetle. Manual - part 1396

 

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Volkswagen New Beetle. Manual - part 1396

 

 

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Terminal 4 + socket 30  

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Terminal 5 + socket 68  

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Wire resistance: 1.5 ohm maximum  

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Check wires for short to one another, to Ground and to Battery +  

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Specification: INFINITY ohm  

If wiring OK: 

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Replace Engine Control Module -J248-. See Engine Control Module (ECM), replacing .  

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Display the Readiness code. See READINESS CODE, DISPLAYING .  

If DTC memory was erased: 

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Set the readiness code. See READINESS CODE, SETTING .  

Change-over valve for intake manifold flap -N239-, checking 

Special tools 

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VAG1390 Hand vacuum pump 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 128: Identifying Special Tool VAG 1390 Hand Vacuum Pump 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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VAG1598/22 Test Box (MY 1999)  

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VAG1598/31 Test Box (from MY 2000)  

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Fluke 83 multimeter  

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VW 1594 Adapter kit  

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Wiring diagram  

Function, checking 

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Start engine and let idle.  

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Switch OFF ignition.  

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Observe position of lever on intake manifold change-over flap (using 2nd technician)  

 

2003 Volkswagen New Beetle GLS 

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

  

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Intake manifold change-over flap must (after switching OFF ignition) close back and after approx. 3 
seconds re-open.  

If change-over does not occur, perform following checks: 

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Check intake manifold change-over flap mechanics for freedom of movement by manually operating the 
rods by hand.  

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Check vacuum function of positioning actuator using VAG1390 hand vacuum pump.  

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Check vacuum lines for correct connection.  

If mechanical components OK: 

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Check Intake Manifold Change-over Valve - N239-.  

Test sequence 

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Disconnect -N239- harness connector.  

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Measure resistance between -N239- terminals. 

 

2003 Volkswagen New Beetle GLS 

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

  

Fig. 129: Measuring Resistance Between Change-Over Valve For Intake Manifold Flap -N239- 
Terminals
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Specification: 25 to 45 ohm  

If specification not obtained: 

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Replace Intake Manifold Change-over Valve -N239-. 

 

2003 Volkswagen New Beetle GLS 

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

  

 

 

 

 

 

 

 

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