no check engine light yet and i really hope that doesn't happen cause that will screw us, but still having the rev problem and i have put quite a few miles on prolly about 80 or so and still doing it while breaking and until i am at a complete stop. had a rough idle at first sometimes still does. and has cut out a few times at high rpm's at about 5800 rpm it started sputtering and holding back. happened 2 times so far.