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Home >> Ford >> 2021 >> Edge ST >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Charging And Controls - 2.7L ECOBOOST (238KW/324PS) >> Diagnosis And Testing >> Air Fuel Ratio >> Global Customer Symptom Code (GCSC) Chart

Global Customer Symptom Code (GCSC) Chart

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to: Diagnostic Methods .

Global Customer Symptom Code Chart 

Customer Symptom Action
Start/Run/Move > Running > Failed Emissions Testing > HEGO GO to Pinpoint Test DW 
Start/Run/Move > Running > Failed Emissions Testing > HEGO GO to Pinpoint Test DZ 
Start/Run/Move > Running > Failed Emissions Testing > Misfire GO to Pinpoint Test H 
Driving Performance > Runs Rough > All Running Modes > Always GO to Pinpoint Test H 
Driving Performance > Poor Fuel Economy > Combined > Unloaded GO to Pinpoint Test DZ