2008 Chevy Avalanche 5.3l Fuel trim Rich and HO2S Stuck Lean Bank 2

Mat I need help I have had this truck for 5 years and every year when the temp drops I get these two codes P0175-00 and P2272-00. But this summer I got them also. Looking at fuel trim they look good with just a little Throttle and at Higher RPM's.
BUT at Idle the long term on both banks go to -20 left -22 right. I seen it hit the -25 Reference that sets the code.

I have to book so if you have an idea on what to look at and you can steer me to were to find it in the book that would be great.
SCAN DATA INFO

At Idle
The Cmmd. A/F Equivalence Ratio is 1.0 very low (reference is 10 to 20)
MAP Sensor 4.4 psi
Intake Manifold Pressure 10.2 psi
The O2 sensors look good
Truck drive great, no power issues at all.

The freeze frame P2272
Fuel ! and 2 OL
Cal Load 93.3%
Engine warming up 145 F
Short T Fuel B-1 1.6%
Long T Fuel B-1 -3.9%
Short T Fuel B-2 0.0%
Long T Fuel B-2 -2.3%
Fuel Rail 41.8 psi
Intake Manifold Absolute Pressure 13.2 psi
RPM 4602
Vehicle Speed 35 mph
ignition timing #1 21.5 deg
intake air temp 41 F
Air flow Rate MA 0.44 lb/s
absolute throttle position 59%
Time since engine start 345 sec
It takes 46 miles with 4 warm-up to set codes
Evp system vapor pressure -1.036 inH2o
Barometric Pressure 14.4 psi
both cat temps Bank 1 & 2 are at 1286
Absolute Load Value 83.9%
Ambbient temp 41 F

Moved your topic to the repair section

does this have the fuel composition sensor relearn? think gm had issues with those causing rich codes

Listen to Cheryl. Fuel composition is top on the list of suspects. If you haven't been using E85 and it shows anything higher than 15%, the reading is skewed. Reset it and watch the trims fix themselves.

I will look at it. I knw I check it in the pass but I will relook at it again. Thanks.