How does your Altima 2011 act when your catalytic converter is bad

Asked by Mary Ann Feb 18, 2020 at 04:55 PM about the 2011 Nissan Altima

Question type: Maintenance & Repair

Got the code for catalytic does your car act when it is bad?

1 Answer


You probably won't notice a difference in drivability unless its clogged up. In that case you'd experience low power and most likely a rough idle from all the exhaust back pressure. All the car is doing is measuring how clean the exhaust is after the cat. If it falls outside of a predetermined threshold it will tell you that you require a replacement. Unfortunately they are quite expensive as they contain precious metals. Have the O2 sensors tested before you go ahead with a new cat. It would be a shame to spend all that money to find out it was a sensor all along. Best of luck

Your Answer:

Nissan Altima Experts

  • #1
  • #2
    G A Arne
  • #3
    Robert Lavallee
View All

Find great deals from top-rated dealers


Related Models For Sale

Used Subaru Legacy
24 Great Deals out of 470 listings starting at $2,950
Used Chevrolet Malibu
36 Great Deals out of 1,736 listings starting at $989

Used Cars for Sale

2020 Nissan Altima For Sale
207 listings starting at $25,988
2019 Nissan Altima For Sale
5 Great Deals out of 163 listings starting at $21,995
2018 Nissan Altima For Sale
11 Great Deals out of 157 listings starting at $12,490
2017 Nissan Altima For Sale
5 Great Deals out of 89 listings starting at $9,888
2016 Nissan Altima For Sale
6 Great Deals out of 123 listings starting at $9,495

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. Content will be removed if CarGurus becomes aware that it violates our policies.