Have an 02 blazer. It'll start up then immediately die. Sometimes it's just once or twice then it will run fine. Sometimes it takes four or five times. There's no consistency to it, no telling when it's going to happen. Just completely random. Sometimes it will go a few days without doing it and sometimes it'll go a couple weeks without doing it. I have a check engine light on for my catalytic converter and another that says fuel too lean. Has anybody ever had this happen or have any idea where to start looking? Thanks