code P0301 for my 2017 Elantra

[flinter]

Hi,

Today I was driving and my engine light came on and the car felt like it was about to stall and had little power. I drove home about 12 minutes shut off the car, restarted and the engine light was out and engine running normal again. This has happened now about 3 times over the last 10 days or so. I pulled out my Ancel code reader, hooked it up, and got a code "P0301 - Cylinder 1 misfire detected". Any idea what the issue may be?? I popped the hood and everything looks in order, oil is fine, coolant, trans fluid, and new clean air filter, 41,000 miles. This car has run flawlessly until this issue.

I will be taking my car into my mechanic in the morning, but would appreciate any thoughts on the issue!

Thanks
Michael in NJ

 

[Zaedock]

The coil may be going bad. Check the wiring connector for tightness.

Swap it with cylinder 2 and see if the problem moves.

 

[flinter]

Zaedock,
Ok, is this considered a warranty repair with Hyundai? Hyundai warranty is 5 years or 60K. Just wondering if I should do to the dealer, or my independent shop?

 

[Mainia]

Warranty Yes.

 

[Knerml12]

You have a 10 year 100,000 mile warranty covering this, if you are the original owner. Take it to dealer.

 

[spasm3]

Take it in for warranty, I had a cat go bad due to a bad upstream o2 sensor. All covered.

 

[bbhero]

The coil may be going bad. Check the wiring connector for tightness.

Swap it with cylinder 2 and see if the problem moves.

This is where to start in my opinion ^^^^

Could also be... Welfare spark plugs installed from the factory...

I had that with a Dodge Neon that had only 32,000 miles on it. The car was running terrible and was missing a lot.. Changed the 4 plugs and the car ran perfect from then on. Welfare spark plugs installed at the factory was indeed the problem in that instance with me.

 

[Zaedock]

Zaedock,
Ok, is this considered a warranty repair with Hyundai? Hyundai warranty is 5 years or 60K. Just wondering if I should do to the dealer, or my independent shop?

It should take less time to swap a coil than go to the packie for beer, but that's ok.

If you're asking about shops, I would go to the dealer.