P0301 Hyundai Elantra: A Comprehensive Guide to Understanding and Troubleshooting This Fault Code

Are you experiencing a misfire with code p0301 or p0302 on your 2017 Hyundai Elantra 2.0 liter motor? In this guide, you’ll learn how to fix that issue with simple steps. Let’s get started!

First, locate the protective engine cover in your vehicle. It’s held in place by four grooves, and you can remove it by gently pulling it up at the corners. When putting it back, ensure the grooves line up and push it down firmly to lock it in place.

If you’re facing a misfire in one of the cylinders, starting with the spark plugs is a good idea. Replace the spark plugs first, and if the issue persists, consider replacing the ignition coil. The tutorial specifically addresses a misfire in cylinder one, so make sure to identify the affected cylinder correctly.

To release the electrical connector from the ignition coil, use a flathead screwdriver to push the release tab. The ignition coil is held by a 10 millimeter bolt, which needs to be loosened to remove the old coil and install the new one. Take this opportunity to inspect the spark plug tube for any debris or oil.

The new ignition coil can be purchased from a reliable auto parts supplier, with the tutorial suggesting rockauto.com for this particular part. Once you have the new ignition coil, carefully place it and secure it with the 10 millimeter bolt, ensuring it’s snug but not over-tightened. Reconnect the electrical connector and ensure it’s securely locked in place.

Finally, resetting the check engine light may be necessary after the fix. If you don’t have a scan tool, disconnecting the negative side battery terminal for about 25 minutes can help reset the light. Alternatively, auto parts stores like Advanced Auto Parts or Autozone may provide this service for free.

By following these steps, you can effectively address a misfire issue indicated by the p0301 or p0302 codes on your Hyundai Elantra 2.0 liter motor. Hopefully, this tutorial has been helpful in resolving the problem. Thanks for watching!

What is the first step to fix a misfire with codes P0301 or P0302 on a 2017 Hyundai Elantra 2.0 liter motor?

The first step is to locate the protective engine cover in the vehicle and aggressively pull it up to pop it loose. The cover is held on by four grooves that go into the bottom of the protective cover.

What could be the potential reasons for a misfire in one of the cylinders?

One of the potential reasons for a misfire in one of the cylinders is a faulty spark plug. It is recommended to start by replacing the spark plugs, and if the misfire persists, then consider replacing the ignition coil.

How can the electrical connector be disconnected from the ignition coil?

Use a flathead screwdriver to push the little gray tab back and then remove the electrical connector from the ignition coil.

Where can a new ignition coil be purchased?

A new ignition coil can be purchased from rockauto.com with the provided part number for approximately $35.

How to reset the check engine light after fixing the misfire?

To reset the check engine light, it is recommended to use a scan tool. Alternatively, the light can be reset by disconnecting the negative side battery terminal of the vehicle for about 25 minutes, or by visiting an auto parts store such as Advanced Auto Parts or Autozone where they may reset it for free.

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