P2271 LINCOLN – Oxygen Sensor Signal Stuck Rich Bank 1 Sensor 2

 

P2271: DIY Repairing Video Tutorial

https://youtu.be/AcpFkGOyVtY

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P2271 LINCOLN Possible Symptoms

  Engine Light ON (or Service Engine Soon Warning Light),High Fuel Consumption,Excessive Smoke from Exhaust  

P2271 LINCOLN Possible Causes

  Faulty O2 Sensor Bank 1 Sensor 2,Exhaust leaks,O2 Sensor Bank 1 Sensor 2 harness is open or shorted,O2 Sensor Bank 1 Sensor 2 circuit poor electrical connection  

P2271 LINCOLN Description

  The downstream heated oxygen sensor (HO2S) is forced rich and lean and monitored by the Powertrain Control Module (PCM). The test fails if the PCM does not detect the output of the HO2S in a calibrated amount of time.