2.0cdti ECU update for DPF causing poor fuel & loss of performace

[Boroboy]

I have the lifetime warranty so I'm still covered for somethings.

I've only done 25000 in just over 4yrs. Before the turbo issue (which was the wastegate sticking) I had no issue's with engine DPF on MPG.

It's all started since the turbo.

Most of driving is town work & as I said I've no DPF issue's until the turbo issue came along. The car is allowed to tick over every morning and start warming up before driven once up to temp I drive her hard, I take her on good runs along the dual carriageways above 2000RPM etc.

My MPG is now 28-32 around town and only 38 mpg on a long motorway run.

All Vauxhall customer service say it we have to find the fault before we can fix anything & diag has to be done via vauxhall dealership.

I get 50 plus on long runs. Low to mid 30's around town. My last 2.0cdti manual s/s was the same. My auto seems no worse on fuel than the manual version.
Bit of a difficult situation your in. I'd take it back again to where the turbo work was done. Speak to the service manager, explain the issues. Let him know there were no other issues present until after you fitted the turbo. Something's wrong, your car is drinking the fuel. You want it sorted. Also inform customer we services again.
I've had the dpf software update whilst my car was in for a new auto box replacement under warranty. I've also had a new heater control module, heated seat pad, seat harness/wiring under warranty over the last 5 months of ownership.
You could ask them to keep it for a few days, whilst they monitor the fuel consumption, supply you with a courtesy car.
I drive my car from cold every morning. Don't push it too hard until it has fully warmed up. Being a big diesel lump. Takes a good while, especially over winter.