Not Ranked
As I broadly understand it, NOx is mainly affected by timing.
CO and CO2 is more a fueling issue.
Mando, is your set up running closed loop? If not, unabling closed loop should fix alot of your tuning issues as the ECU will trim up your A/F ratios to 14.7:1 which is what your cats need to work properly. I assume you're using aftermarket EFI.
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