What does the misfire code p0303 mean?
What does the misfire code p0303 mean? P0303 is a cylinder specific misfire code, which means that Cylinder 3 is misfiring and causing the code. An important thing to understand when finding the location of cylinder 3 is that it’s going to be the 3’rd cylinder in the firing order of the vehicle, and not the 3’rd cylinder that you might see when looking at the engine. What is the diagnostic code for cylinder 3 misfire? P0303 is a diagnostic trouble code (DTC) for "Cylinder 3 Misfire Detected". This can happen for multiple reasons and a mechanic needs to diagnose...