99 olds hard starting

99 olds having hard starting problems. Just had a fuel pressure regulator put in 2 weeks ago. It would start and then kill. Well that fixed the stalling problem.

Please help now it is having a problem starting when the engine has been warmed up and sets an hour. You turn the key and have to just keep turning the key till it starts. Or shut if off and it will start the 2nd time. Car only has 32,000 miles on it and warranty was done in June.
Had car to the garage today and of course they can't duplicate the problem.

Anyone have any ideas?

I had similar symptoms (hard starting when warm) when the crankshaft position sensor was going bad, although it threw a code and lit the dash warning lamp.

There are several threads here on replacing it fairly easily.

http://www.automotiveforums.com/vbulletin/showthread.php?t=145314