My AFR WB is fluxating under one MAF cell, 9500 Hz (approx, it's all the same cell) and it's causing KR when it goes lean. I'm not sure how to address this problem when it's all under one MAF cell, 9500 Hz. Could it be a fuel issue? I have a 3 week old AC Delco Fuel Filter; Racetronix fuel pump; ZZP fuel pump rewire; and ZZP voltage booster. I have 65# injectors with a max INJ Duty of 60% for this scan. Mods are simple, L32 GenV with 3.4; XP cam; and TOGs.