Engine Controls - Self-Diagnostics - EEC-V (Bi-Fuel): Introduction

Perform all basic diagnostic procedures in appropriate BASIC DIAGNOSTIC PROCEDURES article. If no fault is found while performing basic diagnostic procedures, proceed with self-diagnostics. If no diagnostic trouble codes or only pass codes are found during self-diagnostics, proceed to TROUBLE SHOOTING - NO CODES - EEC-V (BI-FUEL) article for diagnosis by symptom.