One problem related to o2 sensor has been reported for the 2014 Ford Fusion. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Ford Fusion based on all problems reported for the 2014 Fusion.
The O2 sensor has burnt out, & has been burnt out for a while. After refueling at any gas station the vehicle will not start up immediately after the key is turned. It takes several attempts to get the engine to recieve fuel & to turn over, and even then it struggles to start up or keep running. I have tried different patterns of pressing the gas pedal, alternating pressure & time without finding a reliable method. The vehicle has turned off if I do not keep the mph above 15mph for at least 10 minutes, & if I stop for longer than 60seconds, it sometimes turns off. This has caused issues in light traffic, especially with the difference in speed between my car shutting off & coasting, & cars passing at 25mph or greater. The dealership refuses to acknowledge that the O2 sensor has issues, but my personal mechanic had confirmed the issue after I had the vehicle inspected at a branch of the automotive repair chain midas. After having the sensor replaced at meineke in sept 2016, it burnt out again in October 2016. Attached is the repair reciept which we finally found today while packing for our move.