hi guys,this morning i start the car and everything is ok until i drive about 15 miles,check engine light come on,the car work fine only a little bit slower,i have obd2 scan,cheap one and the code p-0172 come up,rich mixture or something like that,i need do emission test next month,please help,thanks



ps:i clear the code and about 15 miles come on again :o

could be a duff air flow sensor, o2 sensor or something like that. does it smell rich when running?

well,i dont see any black smoke coming from the muffler in idle,and smell normal,the only thing i notice is when you stop in a red ligth,the car start runing but youu feel the car hesitates,i mean you push the gas pedal and you feel the car slow at the same time,but in idle is ok,i try to check spark plugs,air filter or any broken hose and i let you know,thanks syko :thumbsup:

i agree, check those first before anything else. what happened with your key fob?

well key fob work only when you are close to the doors,like 2 or 3 feet away,more than that no,but i still can open the doors with remote :lol: ,thanks for ask