95 Bonn Wont Start Warm

i have a 95 Bonneville runs great and starts great when cold. If I drive it enough for it to full warm up and then leave it parked for 30min to 1 1/2 hour It wont start. When I try to start it it acts like it gona run but almost instantly starts to misfire terrible, most of the time it quites, but every once in a while it will misfire for about 15sec then gradualy come to a idle. Once running it has no problems at all. I have checked fuel pressure, new plugs and wires, and checked for vacume in the gas tank. Any help would be greatly appreciated.

Try the coil, I have seen mystery's like this solved by replacing the ignition coil. They can often not work properly when heated up. Good luck.

Thank you for your reply, but the coils have been eliminated.

It may be the crank sensor I had this same problem with my 94 bonnie..when warm it won't start..it just cranks and crankns and cranks..after about 30 minutes-2 hours..it will start and run like nothing was wrong with it....part is cheap if you can't do it yourself..labor may be $$$