Mitsubishi Outlander 2008 P0420

Asked by tahmidahmed Nov 17, 2014 at 08:16 PM about the 2008 Mitsubishi Outlander ES

Question type: Maintenance & Repair

i have a 2008 mitsubishi outlander. the car has check engine lights and the only code that
shows up is P0420 catalyst below threshold. that is the only code...so i replaced my cars
catalytic converter with a brand new aftermarket catalytic converter. 60 miles after running
the car the check engine light comes back on with the same code. tried resetting the car
computer but it still comes back on after 60 miles every time...the computer doesn't report
any oxygen sensor failure

4 Answers
30,130

mikeatpriestlake answered 9 years ago

I know you don't have codes for it, but test the downstream (rear) o2 sensor and all the wiring associated with it. you could also have a damaged exhaust somewhere. cracks in the exhaust can do weird things.

2 people found this helpful.
Mark helpful
10

Cory answered 8 years ago

just repalce the o2 sensor thats why its getting the code 90 percent of the time its the sensor

1 people found this helpful.
Mark helpful

GuruCVS7 answered 7 years ago

I have an '08' Lancer (ES) 2.0 MIVEC. There is a TSB about re- flashing the ECM for this P0420 BS. Dealer said my car was not eligible for the recall; paid the weenies $ 130 to re-flash it. have not seen the CEL since.

Mark helpful

Your Answer:

Related Questions

  • Mitsubishi Outlander 2008 P0420 4 Answers

    i have a 2008 mitsubishi outlander. the car has check engine lights and the only code that shows up is P0420 catalyst below threshold. that is the only code...so i replaced my cars catalytic convert...

    2008 Mitsubishi Outlander ES

    -

    Maintenance & Repair

  • 2008 Mitsubishi Outlander completely dead 3 Answers

    My 2008 Mitsubishi Outlander drove fine last night when I got home however this morning went to start it and it did for just a second except for engine and then turned off with a "click" and now nothi...

    2008 Mitsubishi Outlander

    -

    Maintenance & Repair

  • Mitsubishi Outlander 1 Answer

    My Mitsubishi Outlander died while driving it and I replaced fuel pump and relays and fuses and it still wont start its getting gas but wont start

    2003 Mitsubishi Outlander LS

    -

    Maintenance & Repair

  • What brand of brake pads does a 2008 Mitsubishi outlander use? 9 Answers

    What brand of brake pads does a 2008 Mitsubishi outlander use? I have neen quoted $900 by a mitsubishi service centre(thieves) and an ordinary mecahnic shop siad $245 for bendix pads.Are the bendix ...

    2008 Mitsubishi Outlander LS

    -

    Maintenance & Repair

  • 2017 mitsubishi outlander no start 2 Answers

    I disconnected the batery on my 2017 mitsubishi outlander to put a power wire to an amp reconnected the battery and it wouldnt start it doesn't even click but all the the power window's and lights...

    2017 Mitsubishi Outlander

    -

    Maintenance & Repair

Outlander

Looking for a Used Outlander in your area?

CarGurus has 9,391 nationwide Outlander listings starting at $2,500.

ZIP:

Own this car?

Share your experience with others.

2008 Mitsubishi Outlander

Write a car review

Review another car

Shortcuts

Search Mitsubishi Outlander Questions

CarGurus Experts

  • #1
    Daniel Foster
    Reputation
    1,150
  • #2
    Alk1084
    Reputation
    540
  • #2
    Tanner Nelson
    Reputation
    540
View All

Know more, shop wisely

Search

Related Models For Sale

Used Toyota Highlander
1,264 Great Deals out of 18,359 listings starting at $675
Used Honda CR-V
2,087 Great Deals out of 42,594 listings starting at $1,100
Used Toyota RAV4
1,891 Great Deals out of 29,754 listings starting at $1,500
Used Kia Sorento
753 Great Deals out of 19,266 listings starting at $1,600
Used Honda Pilot
996 Great Deals out of 29,394 listings starting at $950
Used Nissan Rogue
1,993 Great Deals out of 54,123 listings starting at $975
Used Nissan Pathfinder
575 Great Deals out of 20,493 listings starting at $775
Used Ford Explorer
2,312 Great Deals out of 63,702 listings starting at $700
Used Hyundai Santa Fe
833 Great Deals out of 20,148 listings starting at $1,350
Used Toyota 4Runner
1,122 Great Deals out of 19,226 listings starting at $1,800
Used Toyota Camry
2,098 Great Deals out of 37,775 listings starting at $575
Used Jeep Grand Cherokee
2,644 Great Deals out of 49,657 listings starting at $624
Used Mazda CX-9
241 Great Deals out of 2,953 listings starting at $1,700

Used Cars for Sale

2024 Mitsubishi Outlander For Sale
8 Great Deals out of 6,798 listings starting at $20,070
2023 Mitsubishi Outlander For Sale
26 Great Deals out of 554 listings starting at $21,899
2022 Mitsubishi Outlander For Sale
66 Great Deals out of 791 listings starting at $16,525
2020 Mitsubishi Outlander For Sale
33 Great Deals out of 443 listings starting at $8,994
2019 Mitsubishi Outlander For Sale
23 Great Deals out of 214 listings starting at $9,900

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