EGR

Hello everyone.
I have an Opel Vectra and it gives me problems with gases.
I changed the EGR a few months ago and again I fail.
Does anyone know any solution ????
I await answers. Thank you.

Companion tell me the data of your vehicle and will try to help

The gases to lower them are to make a complete affination, change of spark plug

Tiens Kikemec reason can be that

The EGR is a gas recirculator, for a combustion at higher working temperature, I tend to cancel them because they give many oroblems and do not provide a great utility, the way to cancel them depends directly on that EGR has and their electronic component or by bacio. That is why I tell you that the problem to be another, now if you tell us what gases are the ones you have high would help us