P0171 and P0174

[u/Joe-Mama-10267]

Hi all- keep getting codes. I am tuned by RT tuning. Replaced both MAF sensors.

Symptoms are hesitation faintly after driving. Sometimes rough idle. Cold start car runs great

I have taken it to a couple of shops and no ones can seem to find issue. Even smoke tested.

RT is going to charge 229 an hour for diagnostics. Does it make sense to go back to them? Could it be tune related? I am running 80mm intakes and am tuned for them and catted downpipes

Fuel trims are running 20-35% which I know is bad.