Astra j vxr P0007 engine code

[J12345]

Hi guys.

I'm after some advice

I've got a 2015 vxr J, it recently went into limp mode and showing engine code p0007 on hard acceleration the car will go back into limp mode and there's white smoke from the exhaust.
Any advice would be much appreciated thanks in advance.

Edited October 30, 2022 by J12345

[Vauxhall Owners Club]

Are the turbo variable vanes gummed up with carbon? if so then apply a cleaner and take for long fast drive which usually sorts it