Thanks. That's what I figured. I had one O2 sensor replaced a year or so ago. I'm wondering if the other might have gone bad.Many different things can cause this to happen. It's the trucks way of telling you something is not right. 1st time mine did that I unpluged the battery for a a bit pluged it back in and it went away. It also happened when I had to replace my CC. I bet it's a sensor or something. Only way to know 4sure is to plug it into a computer and read whats going on. Good luck.
Isn't that zero point calibration?
What is zero point calibration?
I gassed up on Monday, so I doubt it is a loose gas cap. But I'll check that when I leave work.I can't remember the exact combination of warning lights that illuminated
but I've had a loose gas cap a couple of times that the truck read as a
sensor warning/failure.
You haven't gassed up in the last day or so, have you? If so, check the
cap and then wait a couple of days and it should go out. IIRC, there's
some number of engine starts required before the software resets.
I don't have the time or skill. And the truck has a bad wheel bearing that they are fixing while they have it.if they told u which one, maybe u could get it at the auto store & install urself?