Adaptive Fuel Diagnostic Trouble Code (DTCs) Diagnostic Techniques: Notes
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
Adaptive fuel DTCs diagnostic techniques help isolate the root cause of the adaptive fuel concern. Before proceeding, attempt to verify if any driveability concerns are present. These diagnostic aids are meant as a supplement to the pinpoint test steps in ENGINE CONTROLS - PINPOINT TESTS -- FUSION HYBRID, MILAN HYBRID & MKZ HYBRID . For a description of fuel trim, refer to POWERTRAIN CONTROL SOFTWARE .