warning AUDI A4 2000 B5 / 1.G ATQ Engine Oxygen Sensor Control Checking

24-105

Checking oxygen sensor control behind
catalytic converter

- Perform a test drive of approx. 10 minutes.

WARNING!

Observe safety precautions to reduce the risk
of accidents during road test Page 24
-1 .

- Let engine continue to run at idle.Basic Setting
Q
Input displa
y group number XXX

When indicated on display:
- Press buttons -0-, -3- and -7- to select "display group number 037" and
press -Q- button to confirm input.
System in Basic Setting 37
1
2
3
4

When indicated on display:
- Check oxygen sensor voltage in display field 2.
- Check dwell time between oxygen sensor 1 before catalytic converter
and oxygen sensor 2 behind catalytic converter in display field 3 and
diagnostic result in display field 4.
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