DTC 1133 Please help me understand

Thanks for the reply bret, I looked at the TSB and I don't fall in the Vin # for the updated part but will ask at the dealer tomorrow. Any idea why the OBD scanner said that other stuff and what is that part anyways? Now I need to figure out how to check the A/F with just an old volt/ohm meter (I used the scanner at Advanced Auto) the service manual just explains the procedure for a OBD scanner or the Toyota scanner.

Not sure but maybe the scanner they used doesn't have the correct Toyota OE info. If the info you have shows voltage or resistance readings you should be able to check the sensor by back probing the connector terminals, just make sure you connect the meter correctly and have the meter set correctly. Good Luck!