CPS is the ackeleas heal(sp) for the t444e aka power stroke... I believe each engine has it own... the Cummins there is an issue with the fuel pump, D-Max a sensor on the fuel rail... I truly recommend to all who take the time to look at this forum get involved with a forum specific to your tow rig. There is a wealth of information out there. My personal recommendations are:
As far as changing the cps on a 7.3... you will need a 10 mm wrench.. socket is normally to large to fit. there is a single 2 wire connector, the CPS is located to the left of the crankshaft at about the 10 or 11 o'clock position. It can only come out and go in one way... check E-bay for a decent price...
Ford Guys:
http://www.superdutydiesel.com/
http://nwforddiesel.com/
Dodge Guys
http://www.nwbombers.com/
GM guys
http://oilburners.net/
http://www.dieselplace.com/forum/