starts good when cold runs good cold,buttttt,when warmed up. may start or may not...crap shoot.when cold spark at coil pack,when hot and wont start there is no spark. hope there is some good ideas i'm lost. coil pack was replaced two years ago for other problems.

 

I think that is indicitive of either a cam or crank sensor that is going or gone bad. I am not for sure. I think that is what I read before. just a thought.

 

sounds like the cam shaft senor....