higher O2s are richer, lower are leaner. I still use a narrow band, but started using commanded AFR for the time being instead of the O2s.
Given you're basically stock your MAF table should be fine, just check if your LTFTs are in +-3.
Things you want to look into:
-More timing (cruise and wot).
-lower AFR in WOT or PE mode.
-torque management (disable injector or fuel disabling. Leave spark retard for torque management.)
-transmission settings for perf shift (shift points and oil pressure)
-lower temp fan settings along with a colder Tstat
If I were you, I would take a base canned tune like DHP, Import the stock MAF table and start from there.
Originally Posted by UR LOSN
