Need some good advise. While driving my 2005 Element,awd, I was traveling about 65mph when It felt like the engine misfired. I pulled over and put in park and revved the motor. When it reached about 3000 rpm it felt like the engine was using a rev limiter and dopped a cylinder. The engine light came on and stayed on. The rest of the drive home I had to keep it under 3000 rpm and not get on the gas too hard or the same problem would occur. Any help would be greatly appreciated.