Engine Controls - Tests W/Codes - 2.6L EFI: Introduction

If no faults were found while performing BASIC DIAGNOSTIC PROCEDURES - FUEL INJECTION, proceed with self-diagnostics. If no fault codes or only pass codes are present after entering self-diagnostics, proceed to H - TEST W/O CODES (EFI) article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.).