"Seeing that your DIYer tool had detected speed sensor stored fault/codes, I doubt your problems are over with an Oxygen Sensor change.."

Arthur, if I was superstitious, I'd say 'ya jinxed me!'

But I'm just the opposite. What can I say except . . . you were right.

Yep. It came back today. Code 20 on emissions and code 9 on pin 14. Boy am I sick of this CEL saga.

So now the drama begins. We'll see how the dealer deals with this one. Perhaps I can find out (for free) if the fault is with the wheel speed sensor or the one behind the instrument panel.