AUDI A4 1997 B5 / 1.G AFC Engine Cold Start Driveability Problems Workshop Manual

AUDI A4 1997 B5 / 1.G AFC Engine Cold Start Driveability Problems Workshop Manual A4 1997 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1008/w960_1008-0.png AUDI A4 1997 B5 / 1.G AFC Engine Cold Start Driveability Problems Workshop Manual

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AUDI A4 1997 B5 / 1.G AFC Engine Cold Start Driveability Problems Workshop Manual 24-43
 
     
Cold start driveability 
problems, overview 
      The time interval between cold start (open loop) 
and oxygen sensor control (closed-loop), which 
requires an oxygen sensor temperature

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AUDI A4 1997 B5 / 1.G AFC Engine Cold Start Driveability Problems Workshop Manual Read measuring value block 10 1 2 0.4V 0.4V
    
Indicated on display  
Display fields 3 and 4 show signal voltage for oxygen sensors before the 
three way catalytic converters (vehicle cold; oxygen s

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AUDI A4 1997 B5 / 1.G AFC Engine Cold Start Driveability Problems Workshop Manual 24-44
      
CAUTION! 
     
Use a second technician to operate the VAG 
1551 scan tool. 
     
-  Start engine (without previously switching 
ignition off), drive and record voltage signal 
(display

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AUDI A4 1997 B5 / 1.G AFC Engine Cold Start Driveability Problems Workshop Manual group 005 or 006. 
     
Note:  
     For troubleshooting driveability problems, oxygen 
sensor control can be programmed to switch ON 
or OFF using display group 099. By pushing 
buttons -4- and -8-