Section 1 (Engine Controls - Theory & Operation - Gasoline & NGV): Introduction
WARNING: This page is about a different variant/trim than selected.
NOTE:
Information for Escort applies to Escort ZX2 unless otherwise indicated. For Mercury Villager information, see THEORY & OPERATION - VILLAGER article.
This article covers basic description and operation of engine performance related systems and components. Read this article before diagnosing vehicles or systems with which you are not completely familiar. To identify vehicles and engines, see appropriate INTRODUCTION article.