I have a 94 Ex Automatic that just cost me $3000 to get rebuilt. It kept slipping really bad especially when shifting between gears. Having 17s doesn't mean crap when it comes to that type of tranny roblem or any tranny problem for that matter. The transmission def shouldn't cause a check engine light either. Also A Honda Dealership really doesn't like to work on transmissions and they will charge you like crazy to even look at it. Change your fluid and sell it