ajacpril

Any idea how your shop diagnosed that the valve wasn't working?

A super late reply, but I think the process was one of trial and error. The shop finally dropped the tank as there was nothing else left to try and discovered the problem.

Have you been able to fix the problem?

Late (by about a year) posting this.

I had to take the car to a shop in LA to get this looked at. My problem turned out to be that an earthing wire at the top of the tank had been chewed through by some kind of rodent and this prevented some valve from opening and thus no fill!

Could be since you checked the other main culprits but it might still be EVAP canister. Anyhow, since you are a contributing member you can see/read TSBs. At the top of any page, click on DIY Menu and select Current TSBs submenu. Select Boxster 986 and type in the search box: fuel tank hose modification and you'll be able to see the TSB.

Have the same 'gas wont fill' problem in my 2003 Boxster.

So far I have tried the following:

1. Multiple gas stations

2. Checked the E6 fuse, which is fine

3. Replaced the E6 fuse anyway

4. Put my finger in the filler, where the nozzle goes and heard the 'click' of the valve in the neck emits (from what I've read a bad E6 fuse will result in no 'click' sound - so that bit checks out)

I still have the same issue and am assuming it is related to the issue mentioned in TSB 03/99 2015.

Thoughts

I am experiencing the same issue now and wanted to check how you managed to get this resolved.

So I tested the evap solenoid that triggers when you push the flap inside the filler and it appears to trigger fine. Hear a click right under the finder by the filler.

Anyone have any advice on what to check next? Any TSB numbers I should check?

David