I have a 98 k1500 with a 350 that at random times, on first start-up of the day will start and die right away. i can keep trying to start the truck but it continues to do this. i can go out a couple hours later and it will start up on first try. i had the fuel pump and filter replaced 4 months ago, which the problem was occuring before that too. i do have a misfire in one cylinder and a catalytic converter that is possibly defective. could one of these problems cause my start up problem? any ideas?