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Home >> Ford >> 2023 >> Escape Plug-In Hybrid >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Charging And Controls - 2.5L DURATEC >> Diagnosis And Testing >> Air Fuel Ratio >> Symptom Chart
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Symptom Chart

Symptom Possible Sources Action
The engine runs rough. Refer to the pinpoint test. GO to Pinpoint Test DZ 
The engine has a surge. Refer to the pinpoint test. GO to Pinpoint Test H