Totally black spark plugs Cosrsa Evolution

Gentlemen remember the atmospheric pressure sensor, or the EGR locked, make the scan and see what value it is higher, remember that black spark plugs is too fuel and little air sees the lambda values ​​you come out the four black spark plugs or it is some especially, the car as a power how it goes, see the acceleration body as it is to you.

Well colleagues Difinitivamenete Find the problem the oxygen sensor was out of rank sometimes work and another seasons not but then I decided to change it and the problem disappeared good I thank you very much for your collaboration and I hope we continue like this is good help ...

Well, I can tell you that if it has a lot to do with the sensors they name as oxygen, the water, but I would also recommend that the spark plugs you put should have resistance or thermal degree, also check the lucky tps ....