User Guide

Mitsubishi Lancer Evolution IX VX Plug In Installation and Configuration Manual

PlugIn Installation Manual 6 © 2009 Vi-PEC 2 Pre-Installation Before installing theVi-PEC VX ECU into the vehicle some pre-installation checks must be performed. 2.1 Injector Impedance Injector impedance is important and needs consideration before installing the ECU. 2.1.1Mitsubishi ECUs The Mitsubishi VX Plug-In ECU is NOT designed to be used directly with low impedance injectors.

All models this ECU is designed for are fitted with low impedance injectors from factory. Current through low impedance injectors is reduced by the use of factory fitted injector ballast resisters. This means that the ECU is plug-in compatible with factory fitted injector combinations on all models. DO NOT remove the factory fitted ballast resisters. VX Plug-In ECUs offer various options for the installation of additional sensors and devices. As a minimum it is recommended that all ECUs are installed with a Manifold Absolute Pressure (MAP) sensor and Intake Air Temperature (IAT) sensor. These parts can be purchased if required from your nearest Vi-PEC dealer.Manual