engine AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual

AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual A8 1998 D2 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1047/w960_1047-0.png AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-70
 
     
Readiness code 
     
Readiness code, checking
 
     
Note:  
     The readiness code will be erased: 
     
When Diagnostic Trouble Code (DTC) memory 
is erased 
     When the Engine C

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-73
      
Readiness code, generating
 
     
Required special tools and test equipment  
     
VAG1551 Scan Tool (ST) with VAG1551/3 
adapter cable 
     
Test requirements  
     No malfunctions s

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-74
      
Step 1: Check DTC memory Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -2- to select "Check DTC Memory" function 02, 
and press -Q- but

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-77
      
-  Check specified values in display fields 3 and 
4: 
  
Display fields  
  
1   2   3   4  
Display group 60: Adaptation of throttle valve control module to Engine Control Module (ECM)

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-78
      
Step 4: 
     
-  Start engine and let run at idle.
     
Step 5: Oxygen Sensor (O2S) control 
operating condition Rapid data transfer 
HELP
Select function XX
    
Indicated on display

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-79
      
-  Increase engine speed to 1800-2200 RPM.
     
-  Hold at 1800-2200 RPM until specified value 
"111" is shown in all of display fields 1 - 4 (  
table). 
  
Display fields  
  
1   2

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-80
      
Explanation of 3-digit value in display fields 1 
and 2:  
     
When display = 1  
1  
2  
3  
  
      1   Oxygen Sensor (O2S) control active  
   1      Heated Oxygen Sensor (HO2S) 
op

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-81
      
-  Continue to hold at 1800-2200 RPM until 
specified value "B1-S1. OK" is indicated in 
display field 4. 
  
Display fields  
  
1   2   3   4  
Display group 34: Oxygen sensor aging, Ba

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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual display field 4:  
     
-  Continue to hold engine speed at 1800-2200 
RPM. 
     
-  Press button -3- once to advance to display 
group number 35. 
Pa
ge 14 of 29 Readiness code11/23/2002 htt
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AUDI A8 1998 D2 / 1.G AHA Engine Readiness Code Workshop Manual 01-82
 
System in Basic Setting 35  
1 
2 
3 
4
    
Indicated on display (1-4   display fields)  -  Hold engine speed at 1800-2200 RPM until display changes from "Test 
OFF" to "Test ON" in display f
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