24-16
 
     
Idle speed, checking 
     
Notes:  
     
Idle speed can NOT be manually adjusted.
     Idle speed is checked during "Basic Setting" 
function 04. After selecting function 04, the 
learning values for idle speed and oxygen 
sensor control are relearned (idle speed and 
CO content are adjusted independently)   
page 01
-150
 . 
     
CO content is controlled by oxygen sensor 
control for a specified value. Interference within 
oxygen sensor control will be captured via the 
On Board Diagnostic system and stored in DTC 
memory. 
     
Checking requirements:  
     Engine coolant temperature: 85 C (185 F) 
minimum 
     
All electrical consumers must be switched off 
(A/C, rear window defroster, etc.) 
     Transmission range selector lever in "P" or 
"N" position 
Pa
ge 1 of 6 Idle s
peed, checkin
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.FU01.24.3 
         
        
        24-18
 
Basic Settin
g 3
1 2 3 4
    
Indicated on display  
(1 to 4 = Display fields)  
Notes: 
If the specified value is not obtained:  
Continue with test, if the engine coolant temperature exceeds 85 C 
(185 F)   display group 001, display field 1. In "Basic Setting" function 04 the EVAP canister purge regulator valve 
-N80- is closed   page 01
-150
 . 
-  Briefly increase engine speed (RPM) and then let idle for another 2 
minutes. 
-  Observe value in display field 1.
   Specified value: 650 to 750 RPM
- 
Push  button.-  Press buttons -0- and -6- to select "End Output" function 06.
-  Press -Q- button to confirm input.
-  Check DTC memory again   page 01
-13
 .
Pa
ge 5 of 6 Idle s
peed, checkin
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.FU01.24.3