Replaced the fuel pump and the idle control sensor ....
No codes have come up now. Seems to be idling nicely
but under load accelerating up a hill it still seems to hesitate and be cutting out a bit .
When you stop on it , it will sometimes cut out then it ok.
Doesnt seem to be running at full power.
Not sure where to go from here with no codes.
The only things I haven’t changed are the injectors, crank sensor and camshaft sensor .

 

Dirty air filter? Possibly bad fuel?
You don't have any codes but disconnect the MAF sensor and drive your Disco. See if that changes anything.

 

The air filter is clean and MAF sensor was just changed out to a new Beck Arnley insert ...
Almost like it’s starving for fuel but the pump was just changed out.