DTC P0201 Injector Circuit/Open-Cylinder 1; DTC P0202 Injector Circuit/Open-Cylinder 2; DTC P0203 Injector Circuit/Open-Cylinder 3; DTC P0204 Injector Circuit/Open-Cylinder 4: General Description

The fuel injector is a solenoid valve used to supply the correct fuel quantity for optimum combustion under varying speed and load conditions. The ECM/PCM regulates fuel injection quantity by controlling the injection duration based on load, speed, and (in closed-loop mode) HO2S feedback.