Replaced the breaking down filter in my AOS, and put a new O-ring in. Went for a blat and then my silicone turbo outlet hose blew off.. again..
The worst job to put back on, but got it done.
With the AOS fixed, my AFRs are a lot leaner now, maybe 0.5 more lean compared to before. Anyone care to explain? My logic is: less oil getting burned, therefore leaner mixture (my tuner and I have been gradually taking fuel out in places over the last 6 months). Does more oil getting burned make AFR richer or leaner?