Ford F-150 (2004-2008) :: Codes P0053 / P0132 / P2195 And P2196 After Manifold Swap

Had my friends shop replace my passenger side exhaust manifold on my 2004 FX4. Two studs at the front broke flush and one other broke but was sticking out of the head. To get room they did the trick of unbolting the trans mount and the passenger side engine mount and moved the engine over. All is back together but started throwing the 53,132, 2195 and 2196 codes, engine seamed to run fine though. Before bringing it back in I decided to check for any simple things, vacuum leaks or connectors that might have been knocked loose. At first I thought this was a good candidate for a vacuum leak but it turned out to be a vent for the front hubs.

My next thought was that maybe the pass side upstream oxygen sensor got knocked during the work and was now shorting out. It is very tight on that passenger side! Truck has 102,000 miles so they were at the end of their lives. I decided to just replace all 4 with OEM units. I used one of the oxygen/mapp gas torches from the hardware store and a 7/8 in wrench. The drivers side was easy and I did not have to remove the drive-shaft like some write-ups discussed.

Although doing that would give plenty of room. Pass side downstream is fairly easy, upstream was a bit tougher. I took out the inner fender skirt and loosened the trans dipstick tube. That gave just enough room for my large hands to reach in and turn the connector so the sensor side of the plug faced out. I used a pick and fashioned a hook out of a coat hanger to pull the connector apart. That ended up being the hardest part. Putting a good amount of heat into the sensor bung quickly made all the difference in getting them out.

Here is what the upstream pass side sensor looked like. Could not see it from below or from the wheel well.

The codes are all gone now (were coming back after one drive before) so I think the sensor was the issue.