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  1. P0301 Code: Cylinder #1 Misfire (Symptoms, Causes, and Fixes)

    Oct 6, 2025 · Though that dreaded check engine light leaves you dreading a breakdown, a P0301 code is fortunately no catastrophe. We’ll clear up this common misfire code, explain what triggers it and …

  2. P0301 Code Meaning, Causes, Symptoms & Tech Notes

    Aug 19, 2024 · The P0301 code means that cylinder 1 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on …

  3. OBD-II Trouble Code: P0301 Cylinder 1 One Misfire Detected

    In this case it's cylinder #1. A code P0301 may mean that one or more of the following has happened: If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back. If there …

  4. P0301 Code — Here’s How to Fix It Quickly and Easily

    Jan 13, 2026 · Get quick solutions for fixing the P0301 code and keep your engine running smoothly—discover essential tips to avoid future misfires!

  5. Diagnostic Code P0301: Cylinder #1 Misfire - AutoZone

    Since many different errors share these symptoms, you may wonder, “ What does the code P0301 mean? ” This error indicates that cylinder #1 isn’t firing properly because there’s not enough fuel in …

  6. P0301 Code Explained: 6 Symptoms, Causes & Pro Fixes to Save You …

    What’s the difference between P0301 and P0300? P0301 means cylinder 1 specifically is misfiring consistently, while P0300 indicates random misfires across multiple cylinders. P0301 is usually …

  7. P0301: Cylinder 1 Misfire Detected - Edmunds

    Oct 30, 2024 · Here's everything you need to know to understand the check engine error code P0301, which indicates that the engine control module has detected a misfire in cylinder 1. Here are the …

  8. P0301 - Cylinder 1 Misfire Detected - RepairPal

    When the code P0301 is set in the Powertrain Computer, it means that the Misfire Monitor has detected more than a 2 percent variance in RPM between the firing of any two (or more) cylinders in the firing …

  9. Engine Shaking? P0301 Cylinder 1 Misfire – Causes, Fixes & Repair Cost

    The P0301 trouble code means the engine has detected a misfire specifically in Cylinder 1. A misfire happens when fuel inside the cylinder does not burn correctly, causing vibration and power loss. …

  10. How to Fix Car Engine Misfire Codes P0301 – Sage Datum

    Feb 10, 2026 · How to Fix Car Engine Misfire Codes P0301 Understanding the P0301 Code and Its Causes The P0301 code specifically points to a misfire in cylinder 1. This misfire can be caused by …