Engine Controls - Tests W/Codes - Diesel: Introduction

Perform all steps in the BASIC TESTING article in this section. If no fault is found while performing the test procedures in the BASIC TESTING , proceed to the TESTS W/O CODES - DIESEL article in this section for diagnosis by symptoms. The 7.3L VIN K and M diesel engine is mechanically controlled. The computer system is for transmission control only. To diagnose the computer control system, see DIAGNOSIS - E4OD article.