Jeep Grand Cherokee 2.7 CRD not revving or accelerating

[Snowy Jeep]

I'm not catching your drift? What did you mean by "see above"?

[Escapable]

AH ..your posts come from the top .. see Snowy Jeeps post.

[Snowy Jeep]

Finally after a very long wait I received my ecu back from the UK.
I installed it in the car and cleared the engine and transmission codes. Started up straight away like normal but unfortunately the car still won't move. (Insert expletive here).

The same engine codes are still present saying all my sensor voltages are stuffed.

[Adrian D]

I haven't reread the entire topic, did you ever check your engine wiring harness?

If you have the factory repair manual, it describes the procedure to check the actual wiring for one of those error codes, I suspect they all are on the same 5v rail, so something's up with that voltage rail.

FSM can be found here:
http://colorado4wheel.com/manuals/Jeep/WJ/

[Snowy Jeep]

I rushed and must have missed something so I'm now going to follow it word for word in the manual.
I'll write it all down and be clear in my mind exactly what the issue is. It's just too good a car to give up on now especially with all refurbished injectors, new transmission shift board and everything serviced.

[almc3]

I've got an entire engine wiring harness if you think that may help -off a 03 Larado.

[Snowy Jeep]

I've done a few tests so far for some of the fault codes and It's still not clear because on one hand it says there's an open circuit in the wiring circuit that goes to all the affected sensors. On the other hand it says there's a short to ground in the same wiring circuit and then to top things off it says the ECU needs to be replaced.
I've just found an ECU for sale on Gumtree down in Brisbane so I was going to grab that first and see if that fixes it. The wiring harness could be on the cards still but It's a mongrel of a job to get it out of the engine bay so I'll use that as a next step. Thank you for thinking of me.