Ford Repair Questions? Ask a Mechanic for Answers ASAP
The main part here is that it wont go above 2200 rpm. the oil pressure has something to do with fuel control.
The lubrication system is pressure regulated, cooled, and full flow filtered. In addition to providing engine lubrication, it supplies oil to the high pressure oil system to control fuel delivery in the fuel injectors.
Have you tested oil pressure with a gauge at temp?