Ok I have a 2005 F150 with 5.4l that's been throwing codes P0059,P2197. Took it to my local shop and they replaced bank 2 sensor 1 and the cel came back on. They had the scanner hooked up and the passenger side readings fluctuate the way they are supposed to but the drivers side doesn't move at all. With that being said. Holding engine at 2000rpms there's a tapping/ticking noise coming from drivers side. They stated that was probably the issue. Any input on this would be great.