It was running so rich that the brand new down pipes, test pipes, and UEGO oxygen sensor were covered in black in a matter of minutes. I'm not sure if the Ecu was tuned wrong. After checking everything and basically everything is new it all comes back to the Ecu. And all I can think about is how they gave me someone else's Ecu. I would like that to be the problem cause its an easy fix but just wasn't sure if that iWould cause this bad of an issue. I will be pissed at Z1 bad happy if that's the only problem.