Vauxhall Insignia limp mode

Sorry.
But not without it being scanned by somebody who knows how to do it rather than a joker who resets it then pronounces it needs an AFM.
SCAN IT.
Copy and post the codes then you might have a chance.

in responce to.a.previous solution my vehicle was plugged in to a diagnostic machine result was afm any more ideas please

This is for Astra , probably applies .

"Change Engine Oil Soon" The engine oil and filter must be changed by a workshop within one week or 500 km (300 miles).
If the service has been completed but the warning remains then:-

Manual Oil Life System Reset
1. Turn on ignition.
2. Push Menu button on the turn signal switch.
3. Use adjustment wheel and select menu – Vehicle Information System.
4. Use adjustment wheel and select menu – Oil Life System
5. Push SET/CLR button on the turn signal switch and push brake pedal at same time.

http://seventrumpet.com/2008-2015-opel-vauxhall-insignia-oil-life-light-reset/

A quick look at MY diagnostics reveal over 15 fault codes relating to AFM,
I quit looking at that point.
And swapping the AFM clearly didn't fix the fault,
As you state.
Post the "P" codes or everyone is just guessing.

I have had my car go into limp mode and looked up all the forums on google and someone suggester that it might be the turbo pipe as it is a common fault so i took it off bit fiddly because you have to take the bumper off the front to get real access to it but low and behold as soon as i got it off there was a hole in the underside of it where u cant see just a thought for you but its worth having a look at the pipe think the bumper has 5 screws on top one under neath same size and then 4 clip out plastic plug things and then 2 long bolts its not a massive job but just get someone to help take the weight of the bumper when taking it off then all you do is un clip sides on wheel arch and off she comes but watch out for your light wires and your thermostat wire as you will have to disconnect them hence why you need someone to help take the weight of the bumper hope this helps Joe

Have you had a look at this similar problem:

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