Here are signs that your engine might not be burning up all fuel in all cylinders. If your engine is misfiring, you’re virtually guaranteed to experience some other symptoms. In addition, your car can also emit partially-burned fuel in the form of carbon monoxide and nitrous oxide. These hydrocarbons contribute to global warming and smog and can cause your car to fail its emissions inspection. Not only that, but this unused fuel leaves the engine in the form of aerosolized hydrocarbons in your exhaust. There is indeed a timing problem, but it’s the symptom, not the cause of your issues.įrequent misfires cause your gas mileage to drop since your engine isn’t even burning all the fuel it takes in.
Po 300 drivers#
This leads many drivers to think that there’s an issue with their timing, which is only partially true. This can lead to an irregular motion, which will feel like a jerk or a hesitation in the engine’s motion. Essentially, your engine is firing, but not all the fuel is getting burnt. The “misfire” referred to by the P0300 is an incomplete combustion. What Does the P0300 Code Mean For My Car? If this is indeed the case, you’ve probably already noticed some changes in your car’s performance, as well as some rough engine operation, both while driving and while idle.īut other than the occasional shudder, what does this mean for your car? And how can you be sure the problem is actually a misfire, and not a faulty sensor or shorted wire? We’ll walk you through what to do when you see this troubling error code. The OBD-II P0300 code indicates that your engine has experienced multiple random misfires.