4porsh

Well...After many gas fill ups running the 15a in E6, today she was up to her old tricks of no fill up. So I walk over to the fuse panel to check E6 fuse and it was broken. I keep many 7.5a fuses in the car, replaced it and fuel loaded no problem.
With the 7.5 fuse it will brake before I get home, the 15a in E6 port kept strong for a while. The paper explaining fuse sizes and location does say 7.5 for E6. Auto electrician looked up schematic and told me 15a for E6, did it and fueling worked for a while.
Some day I will just bring her in a pay the big $$$ tell its solved.

kgorman

Rob,

Thanks, I have a durametric on it's way..

993GT

Goodstuff! great tool to have, diagnostics, coding, datalogging, etc..
Cheers,
Rob

SJJ28

was this ever solved? just curious, so if it ever happens to me, i know what you found out!

kgorman

Not completely. I just got my durametric and plan to check it this weekend. I will post back

SJJ28

Thanks for keeping us in the loop!! Best of luck in getting it cured!!!

kgorman

Ok an update. I got my durametric and it's showing p0455. But I believe this is because of the filler neck flap I replaced. I reset the code and it hasn't come back, but I haven't driven the car to really confirm that yet. The car is on jackstands for maint. So once that is done I will take a test drive and confirm the code s gone.

I tried a fill via giant funnel. Same problem, crazy overflow, appears not to vent.

Which leaves me at square one. Sigh.

kgorman

One funny note. I was at TWS running a track day, I got low on fuel so I had to run to the station. It was killing me how slow the fill up was knowing I could be lapping.

Air-21

If you ever figure it out keep us posted I'm in the same boat,

Aspen Autosports

Ran into this issue a long time ago with a Boxster. I believe the solution was replacing this part number 99620114301.

This is a bleeder valve that is meant to vent the tank from its pressure during a fuel fill. The valve is actually controlled by the fuel filler neck, the little metal flap that will move when putting the nozzle in place.

It is also important the bleeder valve is positioned and installed correctly, if it is not then it won't make proper contact and therefore won't work.

Forgive me if I am wrong on this because it was a number of years ago that I dealt with this issue.

kgorman

Jake,

Thanks for the tip, but I already replaced that part ;(

Aspen Autosports

Hmm...

Let me think and look at the parts diagrams a little more and see if I can find anything else that might cause the issue.

4porsh

Me too.

kgorman

i am under the assumption the tank isn't venting properly, and thus as fuel comes in and displaces air the only place it can vent is the neck, hence having to fill it slow as hell.

There are a million threads on this. Most of the issues I have tried already. So, I may start taking educated guesses and replacing parts.

This one is suspect: http://www.pelicanparts.com/More_Inf...QodBQkBqw#tab4

And these could be replaced too:
http://www.pelicanparts.com/cgi-bin/...605-201-01-OEM

I just need a diagram of how the venting flow routes...

oldskews4

Have you guys tried leaving the car outside for a while with the gas cap open?