Dave-- yup bank 2 fault code--- about 6 cycles worth.
Gilbert--Will follow your advice--- I backed away from the cleaning the MAF and will wait until I get a code.
Got lucky today--- three of the O2 sensors came out with a nice pull of my breaker bar using one of those claw foot style sockets. Much nice then the tall ones I used to use and break. This one has a 1/2 square on the end to slip in your breaker bar parallel to the socket- and a 3/8" square on the top side 90 degrees to the socket. Pretty neat setup.
Anyway, it was the last O2 sensor on the left before the cat which decided to leave its threads in the bunghole threads- and I had worked it back and forth 1/4 turn at a time with plenty of penetrating oil. I normally use my acetylene torch when I get a hard one- but this one kept moving so I just kept going at it cold.
My sparkplug thread chaser was useless at cleaning the treads---but one of those "way too expensive" buys I made 30 years ago came to my rescue as it often does.
About 30 years back I walked into a store which sold metric hardware which at the time was very hard to find. Had to travel an hour to another city. At the time I had a small set of metric tap and dies with most of the common sizes I needed for restoring 356 Porsches (which were also worth nothing back then). On a shelf behind the counter, they had a Huge complete set of metric taps and dies up to 18 mm with double taps for each size and pitch. It was a serious amount of money but I bit the bullet. One of the best investments I ever made. It keeps saving my butt.
Pulled out the 18 x 1.5 and cut the sensor threads out of the bung threads and was good to go.
A good torch and a complete tap and die kit are a must for any gearhead