My new Disco won't work

Hi, New to Land Rovers, bought a DIsco TD5 2001 with 80k from a private dealer (mistake) I have had it about 6 weeks and not used a tank of fuel because it wont go! Initially it wouldnt start, so had a new injector loom, fuel filter, then found injector 2 had solenoid problem, fixed that and it ran ...but not very well! two days later it broke down and this time it was the 'in tank pump', had new one fitted,it ran but again not very well, lumpy tick over and loses power up hills and under load, would not be able to over take a car on motorway doing more than 50mph. Checked turbo waste gate....free, disconnected MAf and it seemed to be less powerfull, so assume that is working.
Latest...took injectors out and had tested at good diesel engineers, test found all injectors are delivering less fuel than they should, they are going to try a new nozzle on the worst one tomorrow, but they dont think this will solve problem as they think it might be worn internals.
Called Land Rover Dealer/mechanic they thought it was unusual for all injectors to have this problem, they said solenoid or nozzle problems on individual injectors cause problems and suggested re assemble and try computer diagnostic to solve problem.
I am at a loss what to do next, new injectors, big money!! or put back together and have diagnostic..good money after bad!!
I would really appreciate any suggestions.
Thanks

you've got 2 options really

take it back to where you got it and wave a big stick around untill they sort it (which is going to be difficult as you've been messing with it)

find a local indy who can plug it into his brain and tell you whats wrong with it, rather than you spending more time and money replacing parts on a hit or miss basis in the hope that you stumble on the fault or faults

The very first thing I would have done if a TD5 was running badly is too have it's electronic systems interrogated, for fault codes.

It seems to me that up to now you are running round like the proverbial chicken with it's upper body removed.

The big advantage of electronically controlled motors is that sometimes, not alway, they will tell you themselves what it wrong.

Get it on a diagnostic machine asap would be my advice, before you spend more money on parts.


Good luck

Dave