What ended up being the problem with your S4?Hi, I'm new to the group I've been on Audizine for a year. I have a couple of questions about my B7 S4. Could I get your info? I've taken my car two Zinks Autohaus in Grand Prairie and just recently to Eurosport Automotive in Plano. They have not been able to find the problem on why my traction control light and EPC light stay on. Zinks Autohaus immediately demanded to replace the ECU. And Europort has replaced the throttle body, the lights turn on less since the replaced throttle body. But the issue is still their, and makes the car stay on limp mode. Looking forward to hear from you. Thanks.