Once the problem has been resolved switch off the ignition, leave it a few seconds, then switch on again and the engine fault light should be off. If it remains on then there is a possibility you may have more than one fault.
Usually a problem with emission system have vehicle scanned to determine the problem
When the check engine warning light comes on in a vehicle, it means there is a problem in the engine. It means that the engine and connection need to be checked.
The 2014 Ford Fiesta has an inline 4 engine.
The 2011 Ford Fiesta has an inline 4 engine.
The 2013 Ford Fiesta has an inline 4 engine.
The 2012 Ford Fiesta has an inline 4 engine.
a ford fiesta 1.6
The 2013 Ford Fiesta has a 1.6 L base engine size.
The 2012 Ford Fiesta has a 1.6 L base engine size.
The 2014 Ford Fiesta has a 1.6 L base engine size.
The 2011 Ford Fiesta has a 1.6 L base engine size.
It is the Check Engine light. It comes on when the ECU detects a problem with the emissions system. Can be as simple as a loose gas cap or can be serious. Have the ECU scanned.