I have always said that "The simple fix is the best fix". I took my truck in to have repairs done so that it would pass inspection. The emissions stuff just wouldn't pass. I felt certain that I was gonna get clobbered in the wallet big time.
Nope. No sensor replacements, even though I'm sure some places would have replaced them first and them moved on to the real problem. They did a couple of small items and got me out the door with a valid inspection for a small fraction of what I was afraid I'd have to pay.
Kudos to a reliable, reputable, business.