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
30,510

mikeatpriestlake answered 10 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 981 nationwide Outlander listings starting at $4,490.

Postal Code:

Shortcuts

Search Mitsubishi Outlander Questions

CarGurus Experts

  • #1
    Daniel Foster
    Reputation
    1,150
  • #2
    Tanner Nelson
    Reputation
    560
  • #3
    Alk1084
    Reputation
    540
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Toyota Highlander
32 Great Deals out of 737 listings starting at $2,495
Used Nissan Rogue
134 Great Deals out of 5,409 listings starting at $807
Used Honda CR-V
99 Great Deals out of 3,843 listings starting at $1,795
Used Toyota RAV4
100 Great Deals out of 2,089 listings starting at $3,888
Used Honda Pilot
45 Great Deals out of 1,256 listings starting at $4,495
Used Nissan Pathfinder
39 Great Deals out of 1,370 listings starting at $3,995
Used Kia Sorento
76 Great Deals out of 2,315 listings starting at $3,977
Used Hyundai Santa Fe
59 Great Deals out of 1,594 listings starting at $3,950
Used Ford Explorer
87 Great Deals out of 2,048 listings starting at $2,999
Used Toyota 4Runner
12 Great Deals out of 309 listings starting at $9,700
Used Jeep Grand Cherokee
122 Great Deals out of 3,221 listings starting at $4,995

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.