Engine Controls - Basic Diagnostic Procedures: Summary

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES -- NSX & NSX-T, proceed to SELF-DIAGNOSTICS -- NSX & NSX-T article. If no hard codes are found in self-diagnostics, (if vehicle has self-diagnostic system) proceed to TROUBLE SHOOTING -- NO CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.) or intermittent diagnostic procedures.