Engine Controls - Tests W/Codes - Turbo: Introduction

NOTE: For information on MX-6 and 626 non-turbo models, see TESTS W/CODES MX-6 & 626 article.

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