1990 3.3ltr dynasty stalling problems

my 1990 dynasty just recently started to stall it has the 3.3ltr engine. It only seems to stall when its at norm running temp, if I let it sit for a couple secs it will start right up, then it will run for a few more min and stall again. After repeating this a couple of times it wont even start, it still cranks fine. At first I thought it was the fuel pump, but then I tested it and it was fine, so when it wouldnt start I Cheacked for spark and there wasnt a spark so I thought it was coilpack, changed that same thing. So the only thing I'm thinking now is it is the crank angle sensor but I want to make sure before I got out and blow more money on parts u cant return, any opinions?????? thx

it could be either the crank or cam sensor. The cam sensor controls fuel and the crank sensor controls spark.