White smoke

hi I read a few posts on here but nothing relates to my problems white smoke on cold start up running rough sometimes and started to struggle starting like wants to cut out but then restarts its self WHEN COLD if that makes sense? And revs like 900-1000rpm on idle lumpy like sometimes when car warmed runs absolutely fine but most times not HELLPPP

I've have a brand new cylinder head fitted new egr and cooler ran forte injector cleaner straight from the filter new battery old one was leaking new oil return pipe to turbo

2004 Audi tdi 2.0 6speed

IanFM said:

Sounds like a leaky injector possibly. Have you had it scanned with vcds?

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No I haven't will a solus. Machine pick that up will it? And murder if it is leaky injector pd injectors cost a fortune to repair don't they?

No coolant is fine mate everything seems tip top apart from the stated how can I tell what injector is out? Will a scan pick it up? I looked into a refurb for all mine before £680 all in ouchhhhh lol £50 sounds much more pleasant
Like I say sometimes it's ok when hot/warm other times runs rough as rats breaking me after the money that's been put into her already lol