Interesting that it's a short to ground. I had the pan off twice in the last 2 months, only right after I got it back together this last time, the CEL lit up when I started driving down my street. This was probably right around the initial 1-2 shift. I don't believe I pinched a wire but anything is possible. I'm mechanically inclined and do most all my automotive work, so yes....I'm up for the task.