lean afr

Reaching out to see anyone has gotten some type of resolution from my current lean idle issue. The issue is very own minded it will come and go and seems to happen at first start up cycle and with some slight throttle input for a sec or two it will come back to its desired target I've taken some...

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...