You will have to give us more info than that!!!!!!!! Oh yeah STOP YELLING AT US!!!!! Does the car have any aftermarket parts on it I.E. BOV, downpipe, intake anything that would need a tune for the car to run properly? Have you done any maintenance to the car since you purchaced it like spark plugs, some kinda oiled air filter that could have maybe been over oiled and now the MAF sensor needs to be cleaned. It could be anything with the description that you gave so you will have to narrow it down a lot more.