Does anyone here have any kind of diagnostic/code pulling equipment? Anything at all like this?

You might read this thread posted a month or so back.

http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=NW&Number=172188&page=3&view=collapsed&sb=5&o=93&fpart=1

I also think Autozone will read codes for you.

Thanks.