Motor without power

I have an atos model 2005 I bought it from the opportunity last year, the engine was already touched, that is, wet the oil spark plugs. Take it with a mechanic and ring. But a fault persists when the accelerator stepped on the thorough, the engine is heard without force. A fast emergency starts does not give it, it goes slowly and gradually grabbed strength. They already changed the Jak balvele, spark plugs, washed the injectors and other details that I do not remember and still persists the failure.

Hello.
Once I saw a case like that, the coil was changed and improved, however we had to change the entire fuel line because it was clogged.
Greetings,

Moji

Hello friend, I had a similar problem in my workshop and found the synchronization or distribution band (I do not know how they call it in your case) with a tooth to the side, that is, it was not in the ideal position, in addition the escape catalyst was obstructed or covered by the amount of oil that had passed there. I hope it helps you.

Hello Jesus Greetings ... First of all do you have to provide more information ... what a car is it ... model, cylid, automatic or mechanical transmission ... do you say it is injection but what kind? To be able to work a more successful diagnosis ... We expect it! GREETINGS

Hello Jesus, what you should do is temporarily eliminate the catalyst with a piece of exhaust tube and see how the car behaves without it, most likely you have clogged the catalyst and you will have to change it even if it is something expensive I recommend you reinstall so that you have a good operation of your engine and car.
Greetings