Freelander 2 2005 TD4 running problem

High everyone
My son brought this car off eBay last week hoping it was a easy fix ( yer right ) any help would be greatly appreciated

Symptoms
Lots of white diesel smoke
Will tick over when warm but won’t rev up
Have to use easy start from cold as tries to fire but won’t start
Hot will start after a few goes

Done so far
Injectors leak down test 1 replaced
All 4 glow plugs faulty replaced
Cam sensor tested ok
Map sensor cleaned
Head gasket coolant gas test ok but engine cold
Fuel pressure high 4000psi low pressure supply 313.20
Manifold pressure 14.4psi
Fuel pressure regulator current 0.65
Air flow 388.6 mg/str
All at idle
Previous owner replaced the low pressure pump

Hello and welcome to LZ

Thanks

Forgot to say no fault codes

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