o2 sensors and fuel trim....

Chevy1500/2014 · November 15, 2020

I have a 2014 Chevy Silverado 1500 5.3L V8 with 112,000 miles...Initially had issues with Fuel tank sensor...never replaced it.( but will be soon as it comes in) then I kept getting OBD codes telling me to replace O2 sensors that they were failing or running rich...so I did. Check engine light went away for about 100 miles....then engine light came back on and I now get new codes P013D (heated oxygen sensor(HO2S) 2, Bank 2 slow response lean to rich, P2097(Post Catalytic converter fuel trim (FT) Bank 1- too rich ,P2099 (Post Catalytic converter fuel trim(FT) Bank 2- too rich...( also replaced Mass Air Flow Sensor) I have no clue what to do. Other than having a mechanic look at it. Unless a miracle happens and the Fuel Tank Pressure sensor fixes the issues. Also, other day it felt like it wanted to stall out when I came to a stop at a light. put it in neutral and revved it up a little then it was fine. Seems like it has a low idle. Any help would be great!

Thank you

M1ck3y · November 16, 2020

5 hours ago, Chevy1500/2014 said:

I have a 2014 Chevy Silverado 1500 5.3L V8 with 112,000 miles...Initially had issues with Fuel tank sensor...never replaced it.( but will be soon as it comes in) then I kept getting OBD codes telling me to replace O2 sensors that they were failing or running rich...so I did. Check engine light went away for about 100 miles....then engine light came back on and I now get new codes P013D (heated oxygen sensor(HO2S) 2, Bank 2 slow response lean to rich, P2097(Post Catalytic converter fuel trim (FT) Bank 1- too rich ,P2099 (Post Catalytic converter fuel trim(FT) Bank 2- too rich...( also replaced Mass Air Flow Sensor) I have no clue what to do. Other than having a mechanic look at it. Unless a miracle happens and the Fuel Tank Pressure sensor fixes the issues. Also, other day it felt like it wanted to stall out when I came to a stop at a light. put it in neutral and revved it up a little then it was fine. Seems like it has a low idle. Any help would be great!

Thank you

Did you put anything on the threads of the new o2 sensors? Your not supposed to, could potentially damage them. Other then that, I got nothing. Good luck