Page 33 of 90
24-28
      
-  Check DTC memory   Page 01
-15
 . The DTC 
memory must be clear. If necessary, repair any 
malfunctions and erase the DTC memory. 
Switch off the engine, then start up again. Take 
vehicle for a test drive and check DTC memory 
again to make sure it is clear. 
     
-  Run engine at idle speed. 
     
CAUTION! 
     
The electric radiator fan should not be 
running. Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
-  Press buttons -0- and -4- to select function "Basic Setting" and confirm 
entry with -Q- button. 
Basic settin
g 
Input displa
y group number XXX
    
Indicated on display  
-  Press buttons -0- -5- and -6- to select "Display group number 056" and 
confirm entry with -Q- button. 
Pa
ge 33 of 90 Motronic Multi
port Fuel In
jection 
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1 
     
        
        Page 35 of 90
24-30
      
When the engine is idling the engine control 
module tries constantly to adjust the actual 
engine speed so that it matches the specified 
value. 
     This means that the actual engine speed when 
idling should always be approximately the same 
as the specified engine speed. 
     Display fields 3 and 4 provide additional 
information which is not relevant when checking 
the idle speed. 
     
- 
Press button. 
     
-  Press buttons -0- and -6- to select function "End 
Output" and confirm entry with -Q- button. 
     
-  If readout does not match Specified value, check 
DTC memory again. 
     
-  If DTC memory was erased, generate readiness 
code  Page 01
-105
 . 
Pa
ge 35 of 90 Motronic Multi
port Fuel In
jection 
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1 
     
        
        Page 70 of 90
24-60
 
Rapid data transfer 
HELP
Select function XX
    
Indicated on display  
Note:  
During the basic setting the engine control module closes the EVAP 
canister purge regulator valve -N80 and switches off the A/C compressor.  -  Press buttons -0- and -4- to select function "Basic Setting" and confirm 
entry with -Q- button. 
System in Basic Settin
g 
Q
Input displa
y group number 
XXX
    
Indicated on display  
-  Press buttons -0-, -0- and -2- to select Display Group 002 and confirm 
entry with -Q- button. 
System in basic setting 2  
1 
2 
3 
4
    
Indicated on display  
-  Check displayed specified values for engine load.
Pa
ge 70 of 90 Motronic Multi
port Fuel In
jection 
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1 
     
        
        Page 79 of 90
24-69
 
  
Display fields  
  
1   2   3   4  
Display Group 002: Intake air mass at idling speed with engine at operating temperature  
Display   xxx RPM   xx.x %  
x.x ms  
xxx.x g/s  
Indicates  Engine 
speed  
(in steps of 
40 RPM)  Load  
Average injection  
period  Air mass  
Work range  min.: 750 
rpm  
max.: 6800 
rpm  min.: 15 
%  
max.: 
175 %  min.: 2.0 ms  
max.: 19.0 ms  min.: 3.0 g/s  
max.: approx: 225g/s  
Specification  750 - 850 
rpm  15.0 - 
25.0 %  2.0 - 4.0 ms1.  
3.0 - 4.5 g/s  
Note  ---  ---  
If readout does not match 
specification, see table for display 
field 3   Page 24
-70
   
If readout does not match 
specification, see table for display 
field 4   Page 24
-71
   
      If the specification is obtained:  
     
- 
Press button.     
-  Press buttons -0- and -6- to select function "End 
Output" and confirm entry with -Q- button. 
Pa
ge 79 of 90 Motronic Multi
port Fuel In
jection 
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1 
     
        
        Page 88 of 90
Rapid data transmission 
HELP
Select function XX
    
Indicated on display:  
-  Press buttons -0- and -8- to select function "Read Measuring Value 
Block" and confirm entry with -Q- button. 
Read Measurin
g Value Block
Enter display group number XXX
    
Indicated on display:  
Pa
ge 88 of 90 Motronic Multi
port Fuel In
jection 
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1 
     
        
        Page 89 of 90
24-77
      
-  Press buttons -0-, -0- and -1- to select "Display 
Group 01" and confirm entry by pressing -Q- 
button. Read Measuring Value Block 1  
1 
2 
3 
4
    
Indicated on display: (1...4   Display fields)  
If the engine speed does not change:  -  Note engine speed in display field 1.
-  Systematically spray parts of intake system with engine leak detection 
spray. 
- 
Press button.-  Press buttons -0- and -6- to select function "End Output" and confirm 
entry with -Q- button. 
Pa
ge 89 of 90 Motronic Multi
port Fuel In
jection 
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1 
     
        
        Page 90 of 90
24-78
       If the engine speed drops:  
     
- 
Press button.      
-  Press buttons -0- and -6- to select function "End 
Output" and confirm entry with -Q- button. 
     
-  Check sprayed areas of intake system for leaks 
and rectify if necessary. 
Pa
ge 90 of 90 Motronic Multi
port Fuel In
jection 
(MFI
) system, servicin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.1