I can't find any OBD I scanners that are even digital let alone check stuff like that? All I can find is the ones you plug in with the little lights that flash. Does anybody know of a OBD I scanner I can use, and hopefully one that won't Break the bank.
Those aren't scan tools. Those are consumer-grade GARBAGE.
You are going to LOVE what a real scan tool can do. One of these days, I'm gonna connect my tool to a GMT400, take some photos, and let folks know how easy diagnostics can be.
I damaged the scan tool I'd been using for ~20 years, so I bought a used one from eBay about a month or so ago. You do have to be careful to get one that includes the software and adapters/keys/connectors/ suitable for the vehicle you're working on; and has a recharger for the battery that will be mostly crapped-out.
There's heaps of professional-grade scan tools on eBay, craigslist, pawn shops, etc. Prices range from <$200 for old stuff, to "Very Expensive".
I bought a
Snap-On Solus Pro with 8.2 domestic and Asian software, (usable with vehicles up to 2007) a bunch of Asian and a few domestic adapters (I already had all the Domestic adapters I need, from my previous scan tool) the recharger, a battery pack that not totally worthless, all in a bigass suitcase to store it in. $350, shipped to my door. ~$500--$600 is more common, but that generally gets you newer software, typically good for up to 2012, maybe 2016 vehicles.
My previous scan tool was a Snap-On MTG2500. They're ancient, but--in good condition--they do a fine job. The progression of Snappy scan tools was
MT2500, MTG2500, Solus, Solus Pro, Solus Ultra, Solus Edge, and the current version is Solus Legend. The newer the tool, and the newer the software, the more you're gonna pay. Support for the '2500s, Solus, and Solus Pro has already ended. Snap-On will do NOTHING for you if you have a problem, and you can't buy updated software, either. Solus Ultra support supposedly ends at the end of this year.
There are competing tools from other manufacturers, and there are software-plus-your-laptop-and-an-adapter-cable solutions; I've used NONE of them so I can't help you there.