I'm in Columbus. Although I'm a novice, I would be glad to help you troubleshoot. Just PM me.
Secondly, there's a mechanic who works out of the Toy Barn in Dublin. They call him "Turbo Bob." I haven't had any experience with him but I hear that he's very knowledgeable and on point. BTW- I hear that the owner of the Toy Barn has a GN that's suppose to be the shit. I called up there once, and one of the employees told me about both men. Again, not first-hand knowledge, just scuttlebutt.
Hope this helps.