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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 
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