My car quit on my way to work the other day but it started right back up. I took it to have the oil change an they said they had trouble getting it started. When I left, it quit again but wouldn't start back at all. Wouldn't crank or anything. I let it sit over night and it started right up but died after idling a few minutes now it won't crank at all again. The headlights and dash lights work. I just had a new fuel pump installed a couple months ago. The computer at advance shows up a low efficient catalytic converter. I have no idea what could be wrong with it.