24-19
      
-  Compare display with specified values (display 
fields 1-4): 
  
Display fields  
  
1   2   3   4  
Display group 1: Engine idle speed  
Display   xxxx RPM  
xx.x C  
xx.x%   xx.x %  
Indicates   Idle speed  
(in 40 RPM steps)  Engine Coolant 
Temperature (ECT)  Oxygen Sensor 
(O2S) control, Bank 
1  Oxygen Sensor 
(O2S) control, Bank 
2  
Range   0 - 6800 RPM  
-48.0 - 143.2 C  
(-54 - 289 F)  
-25.0 to +25.0 %   -25.0 to +25.0 %  
Specified 
value  620 - 740 RPM  
(all-wheel drive)  80.0  - 105.0 C  
(176 - 221 F)  -10.0 to +10.0 %  
value must change by 
at least 2 %  -10.0 to +10.0 %  
value must change by 
at least 2 %  
   740 - 860 RPM  
(front-wheel drive)          
  
If not as specified  Evaluation of 
display group 1   page 24
-21
   
---   If not as specified:  
- Check HO2S and O2S control before TWC 
 page 24
-22
 
Pa
ge 24 of 166 Motronic Multi
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) and i
gnition s
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11/23/2002 htt
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play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU03.24.1 
24-127
 
Read Measuring Value Block 1 1 2 3 4 
    
Indicated on display (1-4 = display fields)  
-  Monitor oxygen sensor control in display fields 3 and 4.
  
Display fields  
  
1   2   3   4  
Display group 1: Engine idle speed  
Display   xxxx RPM  
xx.x C  
xx.x%   xx.x %  
Indicates   Idle speed  
(in 40 RPM 
steps)  Engine Coolant Temperature 
(ECT)  Oxygen Sensor (O2S) 
control, Bank 1  Oxygen Sensor (O2S) 
control, Bank 2  
Range   0 - 6800 RPM  
-48.0 - 143.2 C  
(-54 - 289 F)  
-25.0 to +25.0 %   -25.0 to +25.0 %  
Specified 
value  620 - 740 
RPM  
(all-wheel 
drive)  ---   -10.0 to +10.0 %  
value must change by at 
least 2 %  -10.0 to +10.0 %  
value must change by at 
least 2 %  
   740 - 860 
RPM  
(front-wheel 
drive)          
-  Systematically spray parts of intake air system with engine leak detector spray. 
Pa
ge 165 of 166 Motronic Multi
port Fuel In
jection 
(MFI
) and i
gnition s
ystem
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU03.24.1