P0171 and p0420 toyota camry 2007 engine size is 2.4

Question

I have a Camry 2007 model engine size 2.4
The type 2az
I have a Code p0171 and after 10 minutes comes p0420 Code
I checked the fuel pump in good condition and is very suitable pressure
Note I replaced the oxygen sensor Bank 1 and Bank 2
Please help me thank you very much.

Answer 1

P0171 is a lean condition , check the MAF (mass airflow) air duct for any torn that is alowing unemetered false air into the intake, the lean condition can can the catalytic code . you may also want to try a MAF and throttle body cleaning.