AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual

AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual https://www.carmanualsonline.info/img/6/1044/w960_1044-0.png AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual

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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-1
 Motronic ignition system Technical data, spark plugs
 
Engine code  
AHA  
  
Engine idle RPM  
 
Idle RPM cannot be adjusted, is corrected by Idle Air Control (IAC) 620 - 740 RPM  
(all-wheel d

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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 1) Part numbers listed here are for reference only. Always check with your Parts department for the latest information.  
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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-2
      
Camshaft Position (CMP) sensor -G40-, 
checking
 
     
Notes:  
     
Camshaft Position (CMP) sensor -G40- is 
located on the rear of the left cylinder head 
(bank 2). 
     Checking -G16

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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-3
      
Checking  
     
-  Disconnect 3-pin harness connector from 
Camshaft Position (CMP) sensor -G40-. 
    
If voltage is OK:  -  Connect multimeter US1119 (Fluke 83 or equivalent) to measure

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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-4
 
    
If wiring is OK (and voltage across terminals 1 and 3 is OK):  
If wiring is OK (but still no voltage across terminals 1 and 3):  -  Check wiring for short circuit between ECM/test box and

Page 6 of 34

AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-5
      
Camshaft Position (CMP) sensor 2 -
G163-, checking
 
     
Notes:  
     
Camshaft Position (CMP) sensor 2 -G163- is 
located on the front of the right cylinder head 
(Bank 1). 
     Check

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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-6
      
Checking  
     
-  Disconnect 3-pin harness connector from 
Camshaft Position (CMP) sensor 2 -G163-. 
    
If voltage is OK:  -  Connect multimeter US1119 (Fluke 83 or equivalent) to meas

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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-7
 
    
If wiring is OK (and voltage across terminals 1 and 3 is OK):  
If wiring is OK (but still no voltage across terminals 1 and 3):  -  Check wiring for short circuit between ECM/test box and

Page 9 of 34

AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual 28-8
      
Knock sensor and knock sensor control, 
checking
 
     
Required special tools and test equipment  
     
VAG1551/1552 Scan Tool (ST) with 
VAG1551/3 adapter cable 
     VAG1598/22 test b

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AUDI A8 2000 D2 / 1.G AHA Engine Motronic Ignition System Workshop Manual Read Measurin
g Value Block 
HELP
Input display group number XXX
    
Indicated on display  
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