Lambda always on

Some days ago on my Volvo 240 '93 lambda probe is always on.
Any ideas.

Andrea, Italy

Andrea1717 wrote:
> Some days ago on my Volvo 240 '93 lambda probe is always on.
> Any ideas.
>
> Andrea, Italy


What do you mean? Is the lambda warning light illuminated, or is the
output of the O2 sensor high and not oscillating?

James Sweet wrote:

>
>
> What do you mean? Is the lambda warning light illuminated, or is the
> output of the O2 sensor high and not oscillating?


Excuse me...I mean lambda warning light.

Thank

Andrea1717 wrote:
> James Sweet wrote:
>
>>
>>
>> What do you mean? Is the lambda warning light illuminated, or is the
>> output of the O2 sensor high and not oscillating?
>
>
> Excuse me...I mean lambda warning light.
>
> Thank


In my 240 the lambda light was on a timer that turned it on after a set
number of miles as a reminder to have the emissions system inspected.
Later US spec cars have onboard diagnostics that store fault codes, but
depending on where you are that might not be the case.