What causes my pt cruiser to shut off while driving?

Codes? The ECM will shut off a motor if it senses anything off with timing, so check for codes pertaining to cam & knock sensors. Mind you this is a hard shut off of engine, like a switch, not dying from lack of fuel or air. If motor is high-mileage, timing chain stretch and wear on guides can allow enough slack to trigger a knock sensor.

I took it to auto zone and they told me the cam shaft sensor. I replaced it and now it's doing it again. Do you think I need to reset the ECM?

It turned out to be electrical.

Where was it in the electrical?

What was the problem with electrical?