It started last year I took it in and they said the code was indicating a lean mixture but they could not reproduce the prolem. They reset the light and it was fine until a few mnonths ago.
This time it cam up as a lean mixture code and an evaportive emissions code but again they could not reproduce the problems.
In the past few months when I went to go start the car after it has been sitting overnight or for several hours it would hesitate when I hit bthe gas(like it wants to stall) and after a few seconds it would run fine. Occasionally it would stall and then when restarted it would run fine. Sometimes when getting on a highway it would seem to not have enoughh power after 35-40 mph and then it would begin to accelerate after a few minutes.
 
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