Thu, 16 Apr 2026 21:45:16 +0000

You Won’t Believe What Triggers the P0300 Code—Fix It Now Yourself If you’ve recently seen the Check Engine Light (CEL) illuminate on your vehicle’s dashboard, one of the most mysterious and downtime-inducing codes you might spot is P0300. Known as the “Random/Multiple Cylinder Misfire Detected” code, P0300 signals that your engine is experiencing erratic misfires across multiple cylinders—causing poor performance, rough idling, and reduced fuel efficiency. But here’s the good news: You won’t believe just how common and fixable this issue really is—if you know what to check. ---