Hello please help error codes !!

[chamuko]

Hello guys hope everyone is ok , I need a bit of help here from anyone that might know what these 2 error codes mean P0175 and P0172 , these 2 came up when I used the comp it says bank 1 too rich ....and bank 2 too rich
I know this is about the O2 sensor B1 and S2 malfunction , the IAc was recently changed and the MAF was cleaned with electrical cleaner non residue one , my friend claims that is the 2 sensors underneath the truck the ones that go into the exhaust one before the catalyst and the other after the catalyst converter ,,,well not sure if its correct , so please anyone with more info about this codes please help .my explorer 4.0 SOHC 2000 thank you in advance.

 

[techieman33]

Yeah that's the code for the o2 sensors, it could be other things, but it sounds like you've done a lot of them already I would change the o2 sensors. Good luck.

 

[chamuko]

Thank you lots

thank you very much some assurance helps all the time same as second oppinions if any more suggestions please bring them on , cheers!!!!