2002 Mitsubishi Eclipse won't start after running for awhil

I left work in my eclipse and drove around 20 miles to home. Went to leave about hour later and tried to start but it only bogged down so after you try it for about 10 minutes it starts right up and runs perfect. Put it in the shop and had a tune up and they put it on the computer which two codes came up.02 sensor and the camshaft sensor, they fixed the 02 sensor and they said the camshaft sensor reset itself. So I didn't drive it for two weeks, drove to work today tried to start it back up at 9:30 started right up. Went back at 11:00 and it just bogged down and popped and spit after about 10 minutes the car starts right up and I drive home, car ran fine. As soon as I cut it off would not start did the same thing.I'm so frustrated with this !