Hello I live in France and I have a Porsche 996 (year 2003)
my car went of Floride , she is in France from 2010

but I have a problem the witness check is always alight and the message for to go to the garage. I am go in garage Porsche and the problem is a sensor on the gas tank , a sensor only for the US model and this sensor is welded on the tank ( not screwed) and the french solution is replacement of the tank 1720$ they can't cancel this anomaly
My question: do you know where this captor is situated on the gas tank and what are the colors of the electric cable
Thank you and excuse me for my american writing

Good road for you

 

Maybe the fuel vapor recovery system is the problem? There are two common problems that can cause symptoms like you describe, both are electrically controlled vacuum valves.
One is by the tank filler neck:
http://www.pelicanparts.com/techarti...Vent_Valve.htm

The other is called Regeneration Valve it is by the alternator in the engine compartment.
It is the more common problem.
http://www.ecstuning.com/ES2224255/

or

http://www.pelicanparts.com/cgi-bin/...10-129-53-M100

 

There's also part #21 here
http://www.autoatlanta.com/porsche-p...section=201-00

It will help if you can ask the shop for the part number of the part in question.

 

Thank you I try the 3 control but where is the regeneration valve, I don't see this on my car

 

an other question: if I find the problem and change the equipment, the witness check will go out or I must go to Porsche for a reset

Thank you

 

Would a RoW reflash eliminate this issue if the problem component is US-only? If so, that might be less expensive than running down parts.

Can anyone else with more knowledge of reflashing weigh in here?

 

@ 5CHN3LL: I don't undersdand all your message :-(
but I have find the regeneration valve , in france we have this generation valve and the fuel line vent valve
but we don't have the valve 21 whose Ahsai speak, and if the problems are come of these parts , the data processing system of Porsche would have recognised these defects I think that the problem comes of this parts
Thanks of yours next ideas

 

Le logiciel de la voiture est le rapport des détails pas nécessaire en France . Je posais les autres membres en cas de changement du logiciel à une version non - US éliminerait le problème sans avoir à remplacer les pièces .

Sorry for the terrible French - the best I could do with a year in college and Google Translate.

 

Je pense que vos compétences linguistiques en français sont bonnes !

That being said, it has been a long time since I studied French in high school!

 

@ 5CHN3LL : thanks but your French is top

me too : Google translate

 

Part 21 is the only valve that appears to attach to the gas tank. It's inserted into part 20, a foam piece that's attached to the gas tank.

Sounds like your check engine light (witness) is ON. Can you use a scanner to retrieve the actual error codes? Those may give us more clues.

 

yes, but in France at Porsche they have only a european version (grrrrrrrrrrrrrrr, in France it's the economic crisis ) if you invites me with my car in USA for delete this default I went
driving with the witness check it is not a problem but I think about an other default arrived I don't see the new warning

 

Maybe try to get one of these?
http://www.durametric.com/

 

Thank s
I think buy this system

Thank you and good road

 

If it's a evap system fault and the problem is corrected, the check engine light should turn off automatically after a few drive cycles with no more faults detected.

Durametric is great but you can also try a generic OBDII scanner (much cheaper) and see what codes you can retrieve.
http://www.ebay.com/itm/Wifi-ELM327-...item4ae2caccb5