Hey all im new here from las vegas i have a 2003 mazda mpv since i had bought the van it had a slight misfire thought i could fix it no luck. It seems to have a slight misfire at idle but in drive it idles and drives really bad has poor performance also smells of gas sometimes when accelerating i had changed all spark plugs and all coils brand new ran good for less than a day than came back driving more bad with really bad gas mileage aswell i cleaned the egr valve nothing. Anybody have any advice or had the same experience and a fix. Would be greatly appreciated

 

Did you ever figure out what the issue was?