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 …
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 …
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 …
P0301 Code — Here’s How to Fix It Quickly and Easily
Jan 13, 2026 · To sum it up, fixing the P0301 code quickly means closely checking the spark plugs, ignition coils, and for any vacuum leaks. Regular maintenance can prevent these issues …
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 …
P0301 Code: Meaning, Symptoms, Causes (& How to Fix it)
The P0301 code is one of a series of OBD-II trouble codes that are triggered when your powertrain control module (PCM) has detected a misfire. This article mainly explains the …
P0301 Cylinder Misfire Code | Overview & How To Fix - Advance Auto Parts
Oct 5, 2021 · The P0301 code is a diagnostic trouble code (DTC) indicating 'Cylinder 1 Misfire Detected'. Check out this article to learn how to best deal with the issue.
P0301 Code Explained: 6 Symptoms, Causes & Pro Fixes to Save …
A P0301 code signals that cylinder 1 is consistently misfiring, usually due to a worn spark plug, failed ignition coil, or fuel delivery problem. Unlike random misfires, P0301 is typically easier …
How To Fix P0301? | Cylinder -1 Misfire Detected
Jan 18, 2025 · What does the P0301 Cylinder-1 Misfire Detected mean? P0301 code gets triggered when the Engine Control Module detects an engine misfire on cylinder-1. Misfire …
P0301 Code: What Causes a Cylinder 1 Misfire? - AxleAddict
Jun 25, 2025 · Learn what the P0301 code means, how to diagnose a cylinder 1 misfire, what repairs may cost, and why quick action can prevent engine damage.