turn signal AUDI A4 1995 B5 / 1.G APB Engine Oxygen Sensor Control Checking Workshop Manual
Page 11 of 61
24-89
If the specified values in display fields 1
and/or 3 do not match the specifications, or if
the readout does not fluctuate by at least 2
%:
- Check oxygen sensor heater Page 24
-114
.
- Check oxygen sensor signal wire and activation
Page 24
-122
.
- Check intake system for leaks and eliminate
false air Page 24
-76
.
- Check fuel pressure regulator Page 24
-33
.
- Fuel return line kinked or plugged.
-
Press button.
- Press button -0- and -6- to select function "End
Output" and confirm with -Q- button.
- Switch ignition off.
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