poor power

[nismo2004]

hi guys my 200tdi disco seems to be sluggish.
since being a memeber on here i have seen a few people with the usual problems and have done the following to try to souch whats wrong.
the disco is lifted with springs and a body lift and has a lot of extra parts like roof rack light bar winch and 265 tyres. so i dont expect it to be like a sports car.
but seems that when i reach hills its loosing power and i have to change down to 4th to make it up the hill,.
also seems to run a bit hot to, its fitted with a kenlow style suction fan which dont seem to make a difference if its on or off.

this is a list of what i have done so far.
replace fuel filter / clean sediment tank.
remove and flush intercooler.
replaced lift pump with new one.

when i start up and on driving it seems to smoke esp on gear changes,
the diesel pump had been tweeked but i have put this back to stock position.
i did wonder if it could be a turbo problem or if the injectors need changing. i do get a slight smell of what smells like gas, and did read somewhere that this could be caused by faulty injectors. as the fuel econemy isnt great to.
so before i go spending more money on parts that dont need changing can anyone point me in the right direction as its becoming a pain now and getting to the pount where i dont enjoy driving it.

[Saffy]

any turbo pull at all? check if turbo waste gate lever seized? Is the plumbing from actuator to the injection pump intact? check all the turbo /intercooler hoses for leaks/stretching.

[nismo2004]

turbo seems ok, i have checked all pipes and they seem ok, i removed the top intercooler pipe and ran the engine then throttled it up and im getting plenty of air from the turbo,

one thing i have just done this afternon was to remove the injectors and i have given them a clean in thinners and just ran it around the block and seems to have made a big improvement,
so now looking at replacing the injectors or injector tips,

now next question is would you replace the whole injector unit or just the tops,
whole unit is

[Saffy]

no experience of servicing injectors here yet, maybe investigate getting them tested and overhauled where needed.

[BigBlueBeast]

If cleaning the injectors helped, source a bottle of cataclean, normally available at wilkos for around 15 quid. It has always done wonders for me!!!!

[Range Rover Blues]

I picked up brand new Bosch injectors for

[nismo2004]

well it seems that it didnt nake that much of a difference, so not sure what the problem is.
i will strip them again and try using some cataclean, i have read that using 2 litres of ATF in your tank once a year helps keep the fuel system clean and or clean contaminated parts, not sure if this is a good idear or not.
i also checked the turbo waistgate erm thingy and seems stiff to move by hand but with a pair of grips moves ok,
i have also orderd a new cyclone filter just incase mines in need of changing. only

[Range Rover Blues]

Stick 1:200 synthetic 2-stroke in your deisel to help clean the combustion chamber and lubricate the pump.

[nismo2004]

ive heard a couple of people mention that, i will re strip my injectors at the weekend and will take them apart and clean them properly then see how it goes