o2 sensor code 130,133

I was getting a po171 lean code forever and have changed fuel filter,fpr and ect sensor, after changing the ect I am not getting a lean code anymore but now I have more problems, I'm getting a po130 and po133 o2 sensor code, replaced the o2 sensor but did not help. it go's into a closed loop fault. hope this is a clue someone can solve. at idle the stft is high and the ltft is normal, at 1800 rpm and higher the stft is normal and the ltft is high,

 

try a search for that code in the search box under the flying pickup top right.

 

Re: CEL codes P0130 and P0133
Here's what I have found so far:

Code: P0130
Detected Condition: Oxygen Sensor Circuit Malfunction(Bank 1 Sensor 1)
Voltage output of heated oxygen sensor remains at 0.4V or more, or 0.55V or less, during idling after engine is warmed up (2 trip detection logic)

Trouble Area:
Open or short in heated oxygen sensor circuit
Heated oxygen sensor
Air induction system
Fuel pressure
Injector
Engine Control Unit

Code: P0133
Detected Condition: Oxygen Sensor Circuit Slow Response(Bank 1 Sensor 1)
Response time for heated oxygen sensor's voltage output to change from rich to lean, or from lean to rich, is 1 second or more during idling after engine is warmed up. (2 trip detection logic)

Trouble Area:
Open or short in heated oxygen sensor circuit
Heated oxygen sensor
Air induction system
Fuel pressure
Injector
Engine Control Unit

 

https://www.tacomaworld.com/threads/obdii-codes-p0133-and-p0130.165898/

seems this^ problem was a clogged cat. Hope some of this helps you out.

 

Was the replacement A/F sensor (the upstream one) Denso brand? Or Bosch?

 

Did you ever fix your issue?