I have a 1999 oldsmobile intrigue w/3.5 L , and cold the car starts great , no gas needed, as soon as the engine warms up instead of idling down the engine stalls, and to start it i must pump the gas Can you help

is the ses light on? any codes?

First guess I am thinking either the crankshaft position sensor or the pesky ignition switch (these things cause lots of problems).

http://www.automotiveforums.com/vbulletin/showthread.php?t=744372&highlight=fuel+pressure+regulator

I would do a search on the FPR on this forum.

I would get a gauge and check your fuel pressure, it could also be a pump related issue. Or could be something as simple as a clogged fuel filter even.