Vauxhall Astra Service and Repair Manuals

Trouble

Information Sensor

Remedy in

Trouble Code Storage when ...

Code

Cause of Fault

F0:DATA LIST

Test Step

38

O2 SENSOR

29

· Oxygen sensor voltage < 0.09 V for a period of time longer than 2.6 s.

or

CIRCUIT VOLTAGE

30

44

LOW

31

The fault is only stored and the replacement value called up, however,

32

if the following conditions are fulfilled:

· Engine temperature > 70 °C/158 °F (condition 1)

· Fault present for longer than 180 seconds, after condition 1 was

fulfilled (condition 2).

· Load signal t_L > 4.5 ms (condition 3)

· All 3 above-mentioned conditions fulfilled for at least 5.2 s

· No air flow meter fault is recognized

If trouble code 38 or 44 is stored, the electronics switch to

open loop (replacement voltage 450 mV)