On the engine codes, the dealer said there found no error codes. However, a technician inspected the engine and determined that I needed these repairs (as I posted on another thread -- directly from my receipt):
"1. Replace distributor cap, rotor, spark plugs, and wires -- misfire
2. Replace...
I was at the dealer this morning and noticed that their "xx,000" mile service includes mostly inspections of this and that, some fluid changes like oil, and hardly any repairs.
I was mainly interested in getting a reading of the engine codes, so I got an engine diagnostic. My other post says...