P0134 FORD – O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1

 

P0134: DIY Repairing Video Tutorial

https://youtu.be/epgyX5iNjLs

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

 

P0134 FORD Possible Symptoms

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

P0134 FORD Possible Causes

  Faulty Front Heated Oxygen Sensor Bank 1,Front Heated Oxygen Sensor Bank 1 harness is open or shorted,Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection,Inappropriate fuel pressure,Faulty fuel injectors,Intake air leaks may be faulty,Exhaust gas leaks  

P0134 FORD Description

  The powertrain control module (PCM) monitors the heated oxygen sensor (HO2S) for a lack of movement concern. If the sensor signal value is not changing from the default value, the PCM commands an oscillating air/fuel ratio attempting to detect some movement in the signal value. The test fails when the PCM is unable to detect movement in the sensor signal while the air/fuel ratio is oscillating.