Originally Posted by Strokin6Liters
I pulled P2263 and P2563
I have been fighting with the 2263 also. It says turbo overboost, but I will throw it when I am cruising. I replace the Exhaust backpressure sensor which is the sensor you have to replace and it did it once again right after I installed the sensor. I have not seen it since and it has been about 400 miles. The other thing could be the VGT like mentioned, or a leak in your air intake somewhere, or a exhaust leak.
I would replace the sensor, that is what I believe was wrong with mine. Some guys say they pull the line off that the sensor is connected to and clean it. I think that is why mine gave me a CEL again, because I did not clean it. I know it is fixed because I could not get the 2263 to clear and now it is fine. The sensor was $86 from ford.
The sensor is located on the driver side in the back on top of the valve cover. It is brass and connected to a siver tube at the bottom and an electrical plug on the top. If you look straight back from the middle of your battery you will see it no problem. Took 3 minutes to replace it. Good luck.