Car stuck in open loop

I saw another thread about this but my problem seems different.

The car won't enter closed loop. I have tried forcing it with the bidirectional controls, but it immediately goes to 20:1 afr on the wideband and sputters like crazy.

I tried putting a new stock tune on it, only changing ifr, and maf fail frequency along with the dtcs and it still won't enter closed loop.

I had codes for MAF sensor circuit low [P0102] (given) , CKP not learned [P1336] (need to do that), and knock sensor low frequency [P0327] (not sure why this one is going off).

ECT is at 170 F and everything else seems normal except that I have one oxygen sensor that stays around .450 +/-.7 V while the other one bounces around like normal.

Would any of these conditions cause the car to be stuck in open loop?

I need some help because my car is running pig rich. Thanks in advance.