My 2014 Ford Focus acys up every time I get gas. I have to pump the gas pedal to keep it running. It only happens when I get gas, and starts fine at all other times.
Only a problem after I get fuel - starts great at all other times and has no problem when at an idle.
The problem was solved - replaced the Fuel Vapor Sensor and the Canister Purge Solenoid. All is well again.