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Code P0430

Tiny
EVELKA
  • MEMBER
  • 2005 HYUNDAI SANTA FE
  • 0.6L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 198,550 MILES
I just replaced bank 1 sensor 2 reset computer and drove a little bit. Same code showed up what does it mean? I also have code p0430. Thank you
Thursday, March 4th, 2021 AT 7:27 AM

7 Replies

Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

The code P0430 is for bank 2 catalytic converter inefficiency. Here are a few tutorials showing catalytic converter symptoms, testing, and replacement:

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

https://www.2carpros.com/articles/catalytic-converter-replacement

Due to having a faulty oxygen sensor up until replacement it may have caused damage to the catalytic converter. I've attached picture steps below on removal and replacement on your vehicle. I would have them tested first before replacement. Hope this helps and thanks for using 2CarPros.

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Thursday, March 4th, 2021 AT 1:42 PM
Tiny
EVELKA
  • MEMBER
  • 47 POSTS
Thank you.
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Thursday, March 4th, 2021 AT 4:44 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
You're welcome!

Let us know if you have any further questions on this issue. Thanks again for using 2CarPros and we hope you will use our site again in the future when needed.

Danny-
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Friday, March 5th, 2021 AT 9:00 PM
Tiny
EVELKA
  • MEMBER
  • 47 POSTS
Which o2 sensor is under engine oil pan then? It's on the passenger side. Thank you
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Friday, March 5th, 2021 AT 9:27 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Your vehicle has 4 oxygen sensors. There are 2 sensors on each bank left and right. One is upstream and one is downstream. I've attached photos for you below. Hope this helps and let us know if you have any further questions on this issue. Thanks again for using 2CarPros.

Danny-
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Friday, March 5th, 2021 AT 10:00 PM
Tiny
EVELKA
  • MEMBER
  • 47 POSTS
I'm sorry bother you. So the bank 1 is on the driver side or passenger side? And then bank 1 sensor 2 is upfront?
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Saturday, March 6th, 2021 AT 3:46 AM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello again.

Bank 1 is the cylinder bank closest to the firewall-windshield. Sensor number 2 is the lowermost sensor towards the back of car. Attached pictures again below and circled in red. Hope this helps and let us know if you have any further questions on this issue. Thanks again for using 2CarPros.

Danny-
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Saturday, March 6th, 2021 AT 3:17 PM

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