timing AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking

AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking A4 1996 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1052/w960_1052-0.png AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-4
 Technical data, ignition system
 
Engine code  
APB  
Engine idle RPM  
Not adjustable - controlled by 
Idle Air Control (IAC)  750 - 850 RPM  
RPM limit  
 
Operates by closing 
throttle valve

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-35
 Measuring value blocks for ignition timing angle retard  Display Group 20 -Ignition- Knock control  
 
Driving mode 
Read measuring value block 20  
  
 Indicated on display  
     
xx.x KW  
x

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking The displayed digit values in display fields 1 to 4 reflects the actual "ignition timing retard" via knock control from the individual 
cylinders. The ignition timing retard occurs via  KW (crankshaft

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-36
 
Display Group 21 -Ignition- Knock control  
 
Driving mode 
Read measuring value block 21  
  
 Indicated on display  
     
xx.x KW  
xx.x KW  
        
  
  
1   2  
3   4  
 Display fields

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-37
 
Display Group 22 -Ignition- Knock control  
 
Driving mode 
Read measuring value block 
22    
 Indicated on display  
     
xx.x RPM   x.x %  
xx.x KW  
xx.x KW  
  
  
  
1   2  
3   4  
 Di

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-38
 
Display Group 23 -Ignition- Knock control  
 
Driving mode 
Read measuring value block 
23    
 Indicated on display  
     
xx.x RPM   x.x %  
xx.x KW  
xx.x KW  
  
  
  
1   2  
3   4  
 Di

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-39
 
Display Group 24 -Ignition- Knock control  
 
Driving mode 
Read measuring value block 
24    
 Indicated on display  
     
xx.x RPM   x.x %  
xx.x KW  
xx.x KW  
  
  
  
1   2  
3   4  
 Di

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-40
 Evaluation display groups 20/21/22/23/24, - Ignition timing angle retard  Indicated on display  
Malfunction cause  
Corrective action  
All cylinders greater 
than 12  KW  
 Knock sensor fault

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AUDI A4 1996 B5 / 1.G APB Engine Ignition System Checking 28-51
 
Read Measuring Value Block 93  
1 
2 
3 
4
    
Indicated on display  
-  Check specified display values for Hall sensors.
  
Display fields  
  
1   2   3   4  
Display Group 093: Phase posit