Fuel Injection System

The fuel injection system on the DOHC 2.2L engine utilizes sequential fuel injection in which the PCM independently controls each fuel injector. The PCM grounds each fuel injector circuit for a certain length of time based on engine operating parameters. The fuel control system is designed to maintain a 14.7 to 1 air/fuel ratio under all engine running conditions except power enrichment (heavy acceleration/heavy engine load), deceleration and cold engine startup. The PCM can turn fuel injectors Off during deceleration, misfire diagnostics and traction control.