Tiptronic woes

[TJ Hemrick]

Hey all,
I got a small problem and need your help. I was about to post on the BBS but thought I might find some help here first. I have a 99 Boxster with tiptronic. When in 4th gear about to go into 5th I lose power, I'd then depress the gas pedal deeper, nothing for a few seconds, still losing power then it would finally jump into 5th! This happened last summer. It was mid 60's yesterday so definitely warmer than it's been all winter. When this happened last summer they (dealer) replaced the fuel pump. It only seems to happen when it's warm out, This morning, running perfect. No problem whatsoever! I'm in Albuquerque just for the record.

Thanks,
TJ