Car won't idle properly

I recently had the water pump and timing belt replaced. Now the car won’t stay turned on; the idle dies.

How long ago did you get this done? When I got my timing belt replaced on my vehicle it had a rough idle and would come up with a check engine light. I took it to the person that replaced the belt and they realigned the belt, it slipped by one notch.

This might be something that you would probably especially if you just had it replaced yesterday and started acting up.