oil AUDI A4 1995 B5 / 1.G APB Engine Oxygen Sensor Control Checking Workshop Manual

24-90
Evaluation display group 032 Display group 32


Display fields: 1/3
Possible cause
Corrective action
Oxygen sensor adaptation
values in range:
-4.0 to -25.0 %
Oil thinning- Carry out oil change or carry out
road test on highway
Display fields: 2/4
High oil consumption
Oxygen sensor adaptation
values in range:
-4.0 to -25.0 % Mass Air Flow (MAF) Sensor faulty- Check Mass Air Flow (MAF) Sensor
Page 24
-59


EVAP canister purge regulator valve remains in
stuck in open position - Check EVAP canister purge
regulator valve Page 24
-134


Fuel pressure too highFuel return line kinked or pluged- Check fuel pressure regulator
Page 24
-33

- Check fuel return line

Fuel injector leaking- Check fuel injectors Page 24
-39
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