Astra 1.8 problem

Another question regarding obstruction as I could know if it is covered that type of pruba is done greetings

The catalyst has inside as a mesh or honeycomb that over time begins to detach until the gase output. The same usually happens with the silencer.
I recommend that you take your car to a Muflas mechanic so that it can verify its status.
It is not a difficult job but certain tools is required to do so.
It is likely that if you approach your hand at the exit of the mufla, notice that there is a very mild flow of gases and even if you accelerate your car.

The best test you can do is remove the oxygen sensor that is directly in the escape multiple. Once you have removed the sensor, give your car game and if everything works, that is, it responds to the acceleration then it is the catalyst that is obstructed. since the burned gases escape by the sensor hole ..

Ok I thank you, I wait for that test, thank you tomorrow, I did it in the morning and I hope you correct greetings

ooooooo forgive is the ke at the head of the engine truth by what is one by which of the two if it is the front Greetings