Volkswagen New Beetle. Manual - part 1507

 

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Volkswagen New Beetle. Manual - part 1507

 

 

Cylinder 4 terminal 3 + socket 94 

Wire resistance: max. 1.5 ohm 

Fig. 19: Identifying 4-Pin Harness Connector Terminals (Engine Code AWP, AWV) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

Continuation for all vehicles 

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Check wires for short circuit to each other. 

If there is no malfunction in wire connections: 

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Replace Engine Control Module (ECM), see REPLACING ENGINE CONTROL MODULE (ECM) 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Ignition-Glow Plug System, 1.8L Generic Scan Tool - New Beetle

  

Check knock sensors 

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Contact surfaces between knock sensor and cylinder block must be free of corrosion, dirt and grease.  

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For the Knock Sensors to function properly, it is important for tightening torque to be exactly 20 Nm.  

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Use only gold-plated terminals when servicing terminals in harness connector of knock sensors.  

Recommended special tools and equipment 

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VAG1526 multimeter or VAG1715 multimeter  

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VAG1594 connector test kit  

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Wiring diagram  

Test requirements 

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Knock sensor securing bolt tightened to 20 Nm.  

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On Board Diagnostic (OBD) must have recognized a malfunction at one or both of the Knock Sensors 
(KS).  

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Ignition switched off.  

Checking resistance values of knock sensors 

Vehicles with engine code APH 

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Disconnect 2-pin harness connector to Knock Sensor (KS) 1 -G61-(-1-) and/or 2 -pin harness connector 
to Knock Sensor (KS) 2 -G66-(-2-). 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Ignition-Glow Plug System, 1.8L Generic Scan Tool - New Beetle

  

Fig. 20: Disconnecting 2-Pin Harness Connector To Knock Sensor (Engine Code APH) 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

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Measure resistance from knock sensor between terminal 1 (signal) and terminal 2 (Ground -GND-). 

Specified value: INFINITY ohm 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Ignition-Glow Plug System, 1.8L Generic Scan Tool - New Beetle

  

Fig. 21: Measuring Resistance Between Knock Sensor Terminal 1 (Signal) And Terminal 2 
(Ground -Gnd-) - Engine Code APH
 
Courtesy of VOLKSWAGEN OF AMERICA, INC. 

If specified value is not obtained: 

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Replace the respective knock sensor: 

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Knock Sensor (KS) 1 -G61-, see item 12 . 

 

2003 Volkswagen New Beetle GLS 

1998-2004 ENGINE PERFORMANCE Ignition-Glow Plug System, 1.8L Generic Scan Tool - New Beetle

  

 

 

 

 

 

 

 

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