engine boggs down while driving

i have a 98 xj. after it sits for 20-30 min. and starting it back up, the engine bogs down ,while driving -real bad, but only once or twice then it goes away after you drive it 5-10min. i have checked the fuel pressure and it remains at 45psi. even during the time it boggs down. no check engine light on either.any ideas?????----BRIAN

Emmmm, fuel filter maybe? Thats the cheapest and first option I would take. Like $10 and really easy to replace.
-Patrick:moon:

-sounds just like my symptoms of a clogged fuel filter. Depending on where you are and what brand (ahwww nevermind same sh#t at all pumps) of gas you use...some being fulll of crap that clogs a "Made in China" or "Assembled in Mexico" fuel filter. -not that you have a choice fairly often. I replace mine regularly...once every 3 years or so.