If you've ever had your check engine light come on and scanned the code only to find a P0301, you're likely wondering what it means and how to address it. The P0301 code is a diagnostic trouble code (DTC) that indicates a problem with your engine's performance. You can also have a similar code (P0302, P0303, and P040) referring to that specific engine cylinder.
The P0301 code specifically refers to a "Cylinder
1 Misfire Detected." In simpler terms, the engine's computer
has detected a misfire in the first cylinder. A misfire occurs when the engine
fails to complete the combustion process properly in one or more cylinders, leading to poor performance, decreased fuel efficiency, and
increased emissions.