Vauxhall Workshop Service and Repair Manuals

Trouble

Code

Information Sensor

Cause of Fault

Remedy in

F0:DATA LIST

No.

Trouble Code Storage when ...

Remarks

31

NO ENGINE RPM

SIGNAL

29, 30

·    Ignition ON

·    Engine speed lower than 23 rpm

·    Trouble code 19 not stored

·    Since ignition ON, there has not yet been a start with correct sychronization

Note:

Trouble code 31 is always displayed when the ignition is switched on. If the system is intact, the fault is deleted as soon as an engine speed signal is received from the pulse pick-up on starting and does not remain stored.

Replacement value:

No replacement value. Current values are used for mixture and requirement adaptation and neutral values are used for the idle air control and characteristic curve adaptation.