[4g63tcrazy]

This is on my white one. 91 tsi, auto, stock. I can't do a boost leak test til I come back home to MN which is in 2 weeks. The car does run lean at idle. I'm pretty sure I need a new fuel filter cause at light loads (driving up a hill) I'll feel a big loss of power and the wide band goes to about 17.5 a/f. Or I was thinking it's the fpr. But that is a different problem. I can't really do anything til I boost leak test it otherwise I'll just be going in circles. And I don't know if base timing is set correctly but the car idled fine before, except it idle surged as it warmed up. But once it was warm it was absolutly perfect. Now that I blocked off the FIAV it does the opposite..