. Remove the K&N Air Filter, if it's an oil impregnated filter, and use a pleated paper filter. Oil from K&N filters often contaminate MAF Sensors and waste a tremendous amount of fuel. This could be the fuel you are smelling. Ford explicitely says not to use oil impregnated air filters. I would follow the procedure below:
http://www.askmehelpdesk.com/cars-tr...ml#post1377134
. Replace the Engine Coolant Temperature (ECT) Sensor, which affects fuel injector pulse width, if the problem persists. The ECT Sensor is a temperature dependant resistor (thermistor), whose resistance decreases as the engine coolant temperature increases. It provides a richer mixture when cold, leaner mixture when hot. They become corroded, due to not changing the coolant frequently enough, flood the engine, and waste a tremendous amount of fuel.