[C man]

So I'm thinking my CPS is going south. Seems about the right mileage. Doing about a 50 mile interstate run the other day and it seemed that my car missed. It happened about twice. Then the check engine light came on. Operated normal. Light went off when I drove again. Checked scan code and came up with P0341, intermettint camshaft signal. Checked all-data today and it said camshaft/crank signal faliure or something to that degree. So today I did a 6mile drive. 30 minutes later I start the car and 3 seconds later I shuts off. What about 5 seconds, starts up normal, no check engine light. Been driving around all day nothing.

Does this sound typical of CPS faliure? Also I read somewhere that you should replace Crank shaft pulley bolt in the process. Is this true? Plan on doing the job soon especially if it happens again in the next day or two.