Service Engine Soon??

My 2000 BMW 3 series failed state inspection recently. The "service
engine soon" light is illuminated and the fault codes are P1250 and
P0441. It appears that the fault codes relate to the fuel cap and/or a
fuel evaporation circuit. BMW service was not able to fix it or
diagnosis the problem after various attempts. I am wondering if anyone
here has had similar problems or a recommendation.

TIA

Did you try taking off the cap and retightening it?

It takes some driving to correct it, it won't automatically turn off...

Deep

"Toto" > wrote in message
om...
> My 2000 BMW 3 series failed state inspection recently. The "service
> engine soon" light is illuminated and the fault codes are P1250 and
> P0441. It appears that the fault codes relate to the fuel cap and/or a
> fuel evaporation circuit. BMW service was not able to fix it or
> diagnosis the problem after various attempts. I am wondering if anyone
> here has had similar problems or a recommendation.
>
> TIA

O2 Sensors?

"Toto" > wrote in message
om...
> My 2000 BMW 3 series failed state inspection recently. The "service
> engine soon" light is illuminated and the fault codes are P1250 and
> P0441. It appears that the fault codes relate to the fuel cap and/or a
> fuel evaporation circuit. BMW service was not able to fix it or
> diagnosis the problem after various attempts. I am wondering if anyone
> here has had similar problems or a recommendation.
>
> TIA


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I did take a look at the fule cap and it appears to properly lock.
Maybe I'll try a new fuel cap, thanks.


"Deep" > wrote in message >...
> Did you try taking off the cap and retightening it?
>
> It takes some driving to correct it, it won't automatically turn off...
>
> Deep
>
> "Toto" > wrote in message
> om...
> > My 2000 BMW 3 series failed state inspection recently. The "service
> > engine soon" light is illuminated and the fault codes are P1250 and
> > P0441. It appears that the fault codes relate to the fuel cap and/or a
> > fuel evaporation circuit. BMW service was not able to fix it or
> > diagnosis the problem after various attempts. I am wondering if anyone
> > here has had similar problems or a recommendation.
> >
> > TIA

I am not to tech savy with autos but I did a quick search on the O2
sensors and I guess it could be the culprit. The car has barely 25k
miles, would you still expect the O2 sensors to be at issue?

thanks.

"tech27" > wrote in message o.verio.net>...
> O2 Sensors?
>
> "Toto" > wrote in message
> om...
> > My 2000 BMW 3 series failed state inspection recently. The "service
> > engine soon" light is illuminated and the fault codes are P1250 and
> > P0441. It appears that the fault codes relate to the fuel cap and/or a
> > fuel evaporation circuit. BMW service was not able to fix it or
> > diagnosis the problem after various attempts. I am wondering if anyone
> > here has had similar problems or a recommendation.
> >
> > TIA
>
>
> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.783 / Virus Database: 529 - Release Date: 10/25/2004

In article >,
Toto > wrote:
> I am not to tech savy with autos but I did a quick search on the O2
> sensors and I guess it could be the culprit. The car has barely 25k
> miles, would you still expect the O2 sensors to be at issue?

I'm not up on your emission tests, but measuring the exhaust CO and HC
content should indicate whether it's a lambda sensor problem or tank seal?

--
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Dave Plowman London SW
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