I've had this car in a shop since I bought it. It bogs when internment bog when it accelerates.It had a code po175 first time,replaced co2 at the cat.Ran ok for a while.then sat over night.Light can back on with a p0172.Put a Mass air flow sensor on .the car start running real Bad,Put the old sensor back on started running ok.Drove it 25 miles ran like a new car.Shut it off and sat for 3 hrs,went to start it lite back.Any help would be appreciated.I may have to take it to a dealer.I have put egr valve,replaced intake gasket,a c02 sensor,new plugs,air duck,rivit,fuel filter.