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Well this is weird. So it was working fine but then I switched ots tunes, the fuel trims are still settled at idle but AFR is hanging around 13-15 on pulls again now. Ugh I should've just left it how it was. But I'm now convinced it's most likely a tune issue. So time to get a new accessport...

UPDATE: So I've been running a "high flow" open filter from Amazon on my Cobb Sri this whole time. I decided today to try putting the old original Cobb filter back into the intake as well as a mesh cover that goes on top of the cone to make it waterproof and it seems to have solved the high fuel...

2008 Mazdaspeed 3 240k km or roughly 150k miles DTC's: P2187, P2006, P2009, P0401 Modifications: COBB SRI, COBB TIP, CPE HPFP, EGR DELETE, VTCS DELETE. Stock Exhaust Tune: Stock tune, Stage 0, Stage 1+ sf ots Concern: +20 LTFT at idle, 14.7 AFR at idle but on acceleration AFR's stay around...