P0054 Code Fixed – Replacing the O2 Sensor on a 2011 Ford Fiesta | The Fixit Shed

My 2011 Ford Fiesta was throwing a P0054 code, which usually points to a problem with the oxygen sensor heater circuit. It could be caused by a bad sensor, blown fuse, or damaged wiring. I checked for obvious wire damage and tested fuse F17 (15A) — both looked good. So I replaced the O2 sensor. Instead of clearing the code, I drove the car to let the system reset naturally. The check engine light turned off after just over 50 miles. If you're chasing a similar issue on your Fiesta, this video walks you through the diagnostic steps and O2 sensor replacement. _____________________________________________ Affiliate Links --- As an Amazon Associate I earn from qualifying purchases. O2 Sensor - https://amzn.to/437cJrl Permatex Anti-Seize - https://amzn.to/4jumyFz O2 Sensor Socket 7/8" (22mm) - https://amzn.to/4cTE2J7 DISCLAIMER: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may receive a small commission. There is no additional charge to you! Thank you for supporting my channel so I can continue to provide you with free content each week! _____________________________________________