Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Ford >> 2023 >> Explorer ST, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Charging And Controls - 3.0L ECOBOOST >> Diagnosis And Testing >> Air Fuel Ratio >> Global Customer Symptom Code (GCSC) Chart

Global Customer Symptom Code (GCSC) Chart

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods .

Symptom Action
Start/Run/Move > Running > Failed Emissions Testing > HEGO GO to Pinpoint Test DZ 
Start/Run/Move > Running > Failed Emissions Testing > HEGO GO to Pinpoint Test H 
Driving Performance > Runs Rough > All Running Modes > Always GO to Pinpoint Test H 
scientia non olet · About Mike's Workshop Manuals