When first started, car runs rough, shaking and mis-firing. Check engine light comes on. After driving for a while, it fixes itself (light goes out, all is well). Full tune-up has been done, plugs wires replaced, code check says one cylinder has mis-fired but problem only occurs intermitently. Could this be poor gas quality? Bg44K fix? Emission valve? What?
Sunday, October 9th, 2011 AT 2:43 AM