Vauxhall Insignia code 82, service vehicle soon, limp mode ??

Hi. Can anyone help me out with the issue I'm having with my insignia.

It's recently has in cooler pipe changed due to spilt.

I'm not getting code 82 coming up, then svs light comes on, car goes into limp mode.

I have ordered some new oil and just wondering if an oil change will correct these issues? I am.hoping so as it's driving me crazy now.
I've just posted on another thread about a problem with my odometer also. Had a flat battery which has caused the odometer to show up as dashes '---- ---- ----'
Any ideas on this also?

Thanks in advance