I have a 2006 Hyundai accent. My check engine light is on it runs fine except idles a lil rough when a.c. is on and my gas mileage isn't great. The code comes up p0420. How do I know if I need a new

Asked by Oct 23, 2013 at 12:58 PM about the 2006 Hyundai Accent GLS

Question type: Maintenance & Repair

catalytic converter or just o2 sensor.
Please help

1 Answer

232,185

http://www.obd-codes.com/p0420

5 out of 5 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Check Engine Light 60 answers

    My car sputters and the CHECK ENGINE LIGHTS goes on and off intermittently.

    Hyundai Accent

    -

    Maintenance & Repair

  • 2005 Hyundai Accent has trouble starting after the engine is warmed up 24 answers

    Just like the title says if I drive the car 10-15 minutes or more than attempt to restart while the engine is still warm/hot it has trouble turning over. It will usually crank a little bit then just...

    2005 Hyundai Accent GLS Hatchback

    -

    Maintenance & Repair

  • Why does my 1999 Hyundai Accent not re-start after short trips and will stall at intersections? 13 answers

    HELP!!! My car has started to quit on my for no reason but it will ALWAYS restart. Sometimes 5 minutes later, sometimes 1 hr. later. I have had to tow it twice to my mechanics but he can't find the ...

    1999 Hyundai Accent

    -

    Maintenance & Repair

  • 03 Hyundai Accent check engine flashing???? 2 answers

    It's been a slow coming problem thats reoccurring. I took my car to get emissions done and a cylinder three misfire came back and also the check engine light didn't work at all. I took it in and had ...

    2003 Hyundai Accent

    -

    Maintenance & Repair

  • Emission code P0420, Can someone please explain code to me? 22 answers

    My check engine light came on with a P0420 code, which means,catalyst system below threshold Bank 1. Can someone tell me what that means in terms of what the problem is? Thanks, Tony

    1999 Dodge Ram Van 3 Dr 1500 Cargo Van

    -

    Maintenance & Repair

Search Hyundai Accent Questions

Hyundai Accent Experts

#1 karibt
karibt
Reputation 1,010
#2 dvigano
dvigano
Reputation 960
#3 Tom Demyan
Tom Demyan
Reputation 740
View All

Related Models For Sale

Used Hyundai Elantra
456 Great Deals out of 52,245 listings starting at $1,699
Used Honda Civic
485 Great Deals out of 87,487 listings starting at $1,499
Used Toyota Corolla
667 Great Deals out of 71,669 listings starting at $1,950
Used Hyundai Sonata
592 Great Deals out of 51,460 listings starting at $995
Used Ford Focus
513 Great Deals out of 55,967 listings starting at $800
Used Nissan Versa
309 Great Deals out of 22,315 listings starting at $1,995
Used Toyota Camry
797 Great Deals out of 89,198 listings starting at $950
Used Kia Rio
88 Great Deals out of 7,313 listings starting at $1,598
Used Mazda MAZDA3
205 Great Deals out of 30,088 listings starting at $1,495
Used Honda Accord
709 Great Deals out of 86,724 listings starting at $699
Used Nissan Sentra
431 Great Deals out of 56,227 listings starting at $1,499
Used Toyota Yaris
104 Great Deals out of 5,299 listings starting at $2,245
Used Nissan Altima
854 Great Deals out of 78,303 listings starting at $1,677
Used Honda Fit
70 Great Deals out of 18,980 listings starting at $2,395

Used Cars For Sale

2016 Hyundai Accent GLS For Sale
2 listings starting at $16,662
2015 Hyundai Accent GLS For Sale
45 Great Deals out of 1,635 listings starting at $7,500
2014 Hyundai Accent GLS For Sale
15 Great Deals out of 481 listings starting at $5,900
2013 Hyundai Accent GLS For Sale
15 Great Deals out of 388 listings starting at $4,495