low oil pressure AUDI A6 1995 C5 / 2.G ATQ Engine Oxygen Sensor Control Checking
Page 13 of 63
24-87
 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 %   
Oil thinning- Oil change or perform swift country road 
test 
  
 High oil consumption  
  
 Mass Air Flow (MAF) sensor faulty- Mass Air Flow (MAF) sensor, checking 
 
 Page 24
-56
 
  
 
Evaporative Emission (EVAP) canister purge 
regulator valve remains stuck in open position - Check Evaporative Emission (EVAP) 
Canister Purge Regulator Valve   Page 24
-
128
 
  
 
Fuel pressure too high- Check fuel pressure regulator   Page 24
-
30
 
  
 
Fuel return line is kinked or clogged.- Check fuel return line.
  
 Fuel injector does not close- Check fuel injectors   Page 24
-36Pa
ge 13 of 63 Ox
yg
en sensor control, checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.24.3 
Page 14 of 63
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 intake system for leaks and repair false 
air. 
 Page 24
-64
 . 
  
 
Fuel pressure too low- Check fuel pressure regulator   Page 24
-30
  
 
Mass Air Flow (MAF) sensor faulty- Mass Air Flow (MAF) sensor, checking 
 
 Page 24
-56
 
  
 
Oxygen sensor heating faulty
 Oxygen sensor faulty- Check oxygen sensor heating   Page 24
-116
  
 
Fuel injector does not open or opens 
only partially - Check fuel injectors   Page 24
-36
  
 
Evaporative Emission (EVAP) Canister 
Purge Regulator Valve sticks - Check Evaporative Emission (EVAP) Canister 
Purge Regulator Valve   Page 24
-128
 
  
 
Ignition coil or spark plug faulty- Check ignition coils   Page 28
-7
Pa
ge 14 of 63 Ox
yg
en sensor control, checkin
g
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.24.3