when i go up hills, it seems the car wants to stop running.

What is your question?

when i go up hills it wants to cut out and it sort of learches forward. as long as i down shift and get a good head start, i will make it up the hill. but once im in first i cant do enymore then put the peddle to the meadle and hope i make it. is it a 02 cencer? a foul plugg? or is it something more seriouse? i think it migh me the reason my check engine light is on. but it has also been on sence i bought the car. the problem up hills, noticely started a year or two after