I got a customer that is having some issues with her car shutting off while she is driving, and I told her I would ask you guys your opinion so we could get to the bottom of this. Basically here is what's happening. Her car runs great, but once in a blue moon it will shut off while she is driving and she will have to pull over come to a stop and she says it will start back up and drive fine. I'm thinking it is ignition related, like a bad ignition switch, or bad sesnor giving a rpm signal like cam or crank sensor. The problem is so intermittent that it is almost impossible to diagnose, since it's only happened 3 times in a month. She has however got a crank shaft position sensor code from time to time. I was just wondering if anyone has had similair complaints due to a bad crank sensor, cuz I'm assuming to change this it's a big job and I don't want to make her spend the money if it isn't going to fix the problem.