ignition AUDI A4 1999 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking

AUDI A4 1999 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking A4 1999 B5 / 1.G AUDI AUDI https://www.carmanualsonline.info/img/6/1067/w960_1067-0.png AUDI A4 1999 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking

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AUDI A4 1999 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking 24-88
 Evaluation display group 032  Display field: 
1 / 3 or 2 / 4  
Possible cause  
Corrective action  
Oxygen sensor 
adaptation value in range: 
10.0 to 25.0 %   
False air in intake area- Check

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AUDI A4 1999 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking 24-89
      
Checking primary voltage  
      Component location of harness connectors   
Overview of component locations, page   Page 
24
-5   
     
Note:  
     Coolant reservoir screws must be rem

Page 43 of 63

AUDI A4 1999 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking 24-111
      
Checking primary voltage  
      Component location of harness connectors   
Overview of component locations - page   Page 
24
-5   
     
-  Disconnect 4-pin harness connector leading t

Page 59 of 63

AUDI A4 1999 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking 24-123
       If there is no voltage again:  
     
-  Check wire connection from terminal 1 to Fuel 
Pump (FP) relay via fuse for open circuit. 
     
       Electrical Wiring Diagrams, Troubleshooti