thanks gays for the help ,,,the rotary keeps showing me the p0301 cylinder misfire also the codes p0138 ( 02 sensor circuit high voltage )(bank 1 sensor 2) ......p0137(02 sensor circuit low voltage)(bank 1 sensor 2).....and the p2096(post catalyst fuel trim system too lean bank 1),,,,also when im going in low RPM i can heard a little noise like vacuum leak ,,,,sometimes i smell gas in the cabin too ,,,,please can anyone help before i put the money on table .....