940 lambda light re-setting code??
 

hi

i have a 940 1991 turbo estate car.
i have had hubby replace the lambda sensor but i need to re-set the light on dash board.
whats the code please if you know it?

mandy

Hi,

Disconnect the battery for about half an hour or so.
That should clear the codes and turn that warning light off.

Des. . . ;)

Mandy, just a query but did you change the lambda sensor because the lambda light came on, or did the OBD give a lambda sensor fault code?

The lambda light indicates that the engine management system has found a fault. It is triggered by the air flow meter, lambda sensor, and a few other faults. Other faults may not trigger the light, but are recorded in the OBD unit.

Read this article for details of how to read fault codes: http://www.volvoclub.org.uk/faq/EngineOBDCodes.html

hi

changed because of light and symptoms,such as very poor running, hesitation on acc, occasional cutting out for no apparant reason.

mandy

Sounds like the fuel pump relay, or a vaccuum leak after the air flow meter (MAF)
Check the codes.

A simple way I found to reset the Lambda light is to :-

Turn on the ignition so the dashboard lights illuminate, but don't start the engine.
Gain access to the fuse board and remove fuse No.1
Turn off the ignition and replace fuse.
When you start the engine the engine, the Lambda light should stay out (provided the fault has been cured).

This method has the benefit of saving the radio settings.

Regards,

Gavin

Well gpl1968, worked a treat Ta,
What are those alloys in your picture, I could do with a set for mine?

They're "Aurigas" and apparently quite hard to find.

Cheers,

Gavin

Just my luck!:angry2:

Most alloys of the spokey nature are hard to find!!

940se Turbo estate warning lights
 

on my 940se estate K reg a warming light has come on it is on the far left of the dash it is an orange square with a green triangle in which is a symbol which looks like a Y upside down, does anyone know what this means