I need help it in the details

I'm so sorry but there's no help to give here other than to direct you to a local repair shop that can perform needed testing. You'll need to have the "check engine" warning evaluated, regardless of solid or blinking -- there are clues there to help determine what may be malfunctioning. To be sure, there may be other issues not helped by that testing, but you have to approach what you know to be wrong first. "Fixed Catalytic Converter" -- if the cat was not working properly it could be due to an engine performance issue that actually did the damage in the first place -- do not just "pull codes" - have testing performed! www.repairpal.com/repair-shops