Blessed by the Potato

Just as I was getting to the Park ‘n Fly the check engine light came on on my car, which is not what I need right now. I’ve got my license renewal/drive clean test coming up in October, and you can’t pass with a CEL on. It used to be that the mechanics would hook up the scan tool and read/clear the codes for free as long as I was in for something else, since of course if the code was something that required fixing, I would then likely fix it there as well… but last time they charged me $90 just to read the code about my O2 sensor starting to go (and I think as long as it hasn’t gotten worse I should still be able to pass). So I’m thinking about getting a scangauge, which can read the OBD-2 codes as well as having some other fuctions such as serving as a fuel consumption meter. It’s pretty expensive at $170, but it would be worth it if I could clear a few codes that I can safely ignore (in my experience with this car, that CEL goes on for a lot of ignorable reasons – including single engine pings).