Engine Controls - Basic Diagnostic Procedures: Summary

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If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES, proceed to SELF-DIAGNOSTICS - EEC-V - CNG & GASOLINE article. If no fault codes are found in self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES - EEC-V - CNG & GASOLINE article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.