Although I don't have a problem with my Porsche, I do have an issue with my '05 GMC pickup truck. I can't add fuel easily at the pump...it takes me 15 min. to put in 8 gallons. My mechanic said I need to get a new Delco fuel sending unit,or fuel module to correct the problem. It moniters the fuel level. Don't know if your issue is related or not.

 

I too would be interested in the $100 rental agreement mentioned above if available to someone you do not know...as in me! Appreciate your consideration. Thanks.