Fuel Injector: Description and Operation

The fuel injection system on both SOHC and DOHC engines utilize sequential fuel injection. 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) and deceleration modes. The PCM can turn fuel injectors Off during deceleration, misfire diagnostics and traction control.