gen 3 lq4 first tune

[ls-tech]

hello this it my first try at a tune I work in a shop and we primarily use hp tuners for removing dtcs for depf delete kits. but onto my issue I have a 2002 Yukon Denali that I have had the cats removed, with stock bank 2 sensor I have disabled codes required for sensor and check engine light is now off. but my ltft and stft are way rich like 25% now my maf sensor reading is a little off desired at idle is 7.20 and its reading about 5.5g/s cleaned sensor and no dtcs for maf sensor I am thinking maybe intake gaskets leaking wondering if there is something I have over looked with my exhaust system tho. any info would be great thank you

[usc45cal]

im not clear on what o2's you removed ? you need both upstream but can delete any post cat sensors and should be ok any log file at o/t in closed loop?

Regards
JIm