MG ZT CDTI Engine "Hunting" and Vibrating Bad

Hello

Need some help here please.

I am having some issues with my MG ZT 2.00 ltr diesel. 54 reg 97000k.

Just recently the engine started "hunting" almost stalling in Idle. Its vibrates really bad. It is also very bad on cold start and will not respond to accelerator very well and sounds like it will die . But after a few revs i can just drive it and at and over 3000 rpm it seems to be ok and drives well with turbo working ok. Can do 70 mile per hour no problem



What i have done so far.



Disconnecting MAF - doesn't make any difference.

Cleaned/washed PCV Valve - not difference

Cleaned EGR VALVE- no difference.

New air filter,new oil change. Fuel filter under the bonnet changed last year.

No obvious leeks or pipe damage.

ECU is dry.



Any Ideas anybody?

Thank you

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