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Engine Controls - Theory & Operation: Introduction

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.

Fig 1: Locating Data Link Connector
G00240434Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Engine Management Component Locations (1 Of 2)
G00240438Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying Engine Management Component Locations (2 Of 2)
G00240439Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 4: S40 & V40 Component Locations
G00252526Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 5: S40 & V40 Component Locations (Legend)
G00252451Courtesy of VOLVO CARS OF NORTH AMERICA.