Just for giggles, we hooked up our MacTools x431 reader to take a peek at camshaft deviation values. Here's what we saw:
Vehicle is a 2000 base 2.7L. Engine runs, revs, and idles beautifully. No CEL. No codes.
I suspect it's a code reader issue. I've done a forum search and found that some engines do not have a bank 2 sensor, but don't think that's the case here.