Originally Posted by 1turbofocus
The returnless system of the o8 and up has the same type cannister and a fuel rail psi sensor just like the early years , The ECU is getting a reading of fuel psi from somewhere because I saw this on a Ford scan tool , whats changes that makes the o8 Diff from the o9 or o7 ? If Ford can read and the ECU read this signal why cant SCT read it ?
Ford physically changed the processor from 07 to 08 then changed it again from 09 to 2010. One of the reasons for this may have something to do with the control of the fuel system.
The 2010 may be different but I am looking at one now. There is no sensor anywhere on the fuel rail. IDS does not log anything fuel pressure related on this car.