Ok, so this year we've had the car out maybe a total of 15 times or so, its got 1700 miles on it, and it doesnt get driven a whole lot. But it seems just about every time we take it out, the cars SES light comes on. We'll be cruising, then the car kinda jerks back and forth as if you were about to stall it, and you can see the RPM's jump up and down and then the SES light comes on. Everytime its done this, we've taken it back to the dealership, but they cant find the problem. Anyone have any idea what the problem is? They replaced the camshaft position sensor, but that hasnt helped.