my car shows lean at WOT but not so much at idle, but it stills runs really rough 24/7.and i know for a fact that the guys that were tuning added as much fuel as they could with the Neo and it didn’t make a lick of a difference. i am almost certain it is an ECU issue more then anything. i say that because all the guys i talk to with tibs have always did something different with there ECU, not just through a piggy-back on them.