You sound a lot like me....if I know what to do I can do it!

And I'd stay far away from PepBoys for any work. I bet 99.9 of their shop people don't know what a VX is and the other .1 have only seen a picture somewhere!

I had a rough idle problem once but had a steady check engine light...it was the spark plugs. The previous owner had changed the originals out for some really crappy cheap ones. Put in some plus 2's and its ran great ever since.