Unfortunately, I am one of those people you pity. But I am learning. I know computer systems, networks, infrastructure. But I am no mechanic!!
I'm in the same boat. I will be doing the induction cleaning this weekend as well as cleaning the EGR ports. My CEL is throwing a P0401 and my mileage has gone down some. With my commute of nearly 80 miles a day, it makes a difference.
I spent $110 at the dealership to have them do a diagnostic. Yes, I got bent over!! But next time around, I will be a little more wise on what to do.
