Thanks - will get the fuel tank low and light going to refill and then try clearing the code again. I was in the middle of a road trip when happened so had to refill with the code still, but will try again before the next fill up.You have to get the fuel tank level down, drive it for 30 minutes than clear the code.
I can do it with almost all my OBD tools. I keep a OBD Link CX in the truck. It works