p0420

Asked by Jan 11, 2014 at 10:00 PM about the 2001 Honda Civic LX

Question type: Maintenance & Repair

4 Answers

21,305

The catalytic converter is bad in exhaust and needs replaced. It is highly recommended to replace the o2 sensor at the same time.

118,755

http://www.obd-codes.com/p0420 --- check this out. Might find some of the info helpful.

355

Overall probably the biggest mistake vehicles owners make when they have a P0420 code is to simply replace an oxygen sensor (H02S). It is important to do proper diagnosis so you're not wasting money replacing parts unnecessarily. (BEST TAKE AWAY FROM DD'S LINK ABOVE)

21,305

Replacing the catalytic converter and o2 sensor is from Honda's technical website due to code p0420.

Your Answer

Civic

Looking for a Used Civic in your area?

CarGurus has 54,502 nationwide Civic listings starting at $1,500.

ZIP:

Honda Civic Experts

  • #1
    Tom Demyan
    Reputation
    1,210
  • #2
    Takoda Fraser
    Reputation
    1,040
  • #3
    Jonathan Ford
    Reputation
    1,030
View All

Related Models For Sale

Used Honda Accord
849 Great Deals out of 89,053 listings starting at $1,444
Used Toyota Corolla
924 Great Deals out of 71,092 listings starting at $1,479
Used Honda Civic Coupe
177 Great Deals out of 11,050 listings starting at $1,800
Used Toyota Camry
1,104 Great Deals out of 78,328 listings starting at $1,100
Used Honda CR-V
784 Great Deals out of 63,574 listings starting at $1,495
Used Nissan Altima
1,150 Great Deals out of 75,894 listings starting at $900
Used Hyundai Elantra
605 Great Deals out of 47,145 listings starting at $495
Used Honda Accord Coupe
155 Great Deals out of 5,160 listings starting at $1,800
Used Ford Mustang
354 Great Deals out of 42,606 listings starting at $1,488
Used Ford Focus
635 Great Deals out of 69,826 listings starting at $1,750
Used Hyundai Sonata
626 Great Deals out of 54,780 listings starting at $1,500
Used Nissan Sentra
711 Great Deals out of 54,123 listings starting at $1,495

Used Cars For Sale

2017 Honda Civic LX For Sale
10 Great Deals out of 1,616 listings starting at $13,989
2016 Honda Civic LX For Sale
40 Great Deals out of 1,117 listings starting at $10,982
2015 Honda Civic LX For Sale
136 Great Deals out of 3,851 listings starting at $8,495
2014 Honda Civic LX For Sale
54 Great Deals out of 1,565 listings starting at $6,250
2013 Honda Civic LX For Sale
19 Great Deals out of 754 listings starting at $6,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.