So i decided to replace my MAF and o2 sensor after years of driving with a check engine light. After replacing it, car runs like ****. Now i have to deal with a system too lean problem. Worst of all, car goes into limp mode.

This is for a 00 1.8t with GIAC, intercooler, DV, intake, and non-fouler o2 for straight pipe. if anyone can help me out, i really appreciate it.