Mazda 3 P0203: Injector Circuit Malfunction | Cylinder 3
P0203 is a common OBD2 trouble code. It means the third cylinder in the firing order has a fuel injector that is malfunctioning. It’s generic code, which means that it means the same thing for the Mazda 3 as it would for any other vehicle. When the PCM sees that the voltage from cylinder … Read more