Help with CEL 2012 LR4

[DougG]

Trying to help my dad out with a problem he has been having with his 2012 LR4. He's had a CEL on for a few months. Can't pass inspection. I pulled two codes, P219A Bank 1 air fuel ratio imbalance, and P2097 Post catalyst fuel trim system too rich. I have replaced the Bank 1 MAF, cleared the codes, and same codes came back. He has also replaced the fuel cap. I can't see anything obvious when looking at the hoses and lines on the right side of the engine. The air filter is clean with no obstructions. Before taking it to a shop, what else should I be looking for? And if I do take it to a shop, what would they do to try to solve this. My parents have owned this car for a couple years. I should have talked them out of buying it because they are both almost 80, and don't have a good shop near them. Any help would be appreciated.
Thank you.

 

[DougG]

Forgot to mention. It has the 5.0 L V8

 

[Howski]

Wouldn’t hurt to run some Cataclean through it. Probably not the ultimate solution but worth checking off

 

[discostew]

I can try to look it up but I think the A after that one fail code means you have an air leak.
I’ve dealt with the imbalance stuff in the past. I’ve actually fixed a right side imbalance fault with a left side 02.

 

[ApolloActual]

Trying to help my dad out with a problem he has been having with his 2012 LR4. He's had a CEL on for a few months. Can't pass inspection. I pulled two codes, P219A Bank 1 air fuel ratio imbalance, and P2097 Post catalyst fuel trim system too rich. I have replaced the Bank 1 MAF, cleared the codes, and same codes came back. He has also replaced the fuel cap. I can't see anything obvious when looking at the hoses and lines on the right side of the engine. The air filter is clean with no obstructions. Before taking it to a shop, what else should I be looking for? And if I do take it to a shop, what would they do to try to solve this. My parents have owned this car for a couple years. I should have talked them out of buying it because they are both almost 80, and don't have a good shop near them. Any help would be appreciated.
Thank you.

Did you get the fuel flange recall done? I spent a couple months trying to pass emissions and couldn't do it no matter what I tried. 5 minutes after I got the fuel flange replaced all the emissions tests passed.