Mazda 6 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 6 as it would for any other vehicle. When the PCM sees that the voltage from cylinder … Read more

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