Check Engine LIght - Circuit O2 sensor bank2

10

Asked by MonteroTN Apr 09, 2010 at 10:38 AM about the 2003 Mitsubishi Montero Sport ES

Question type: Maintenance & Repair

According to OBD scan it says bank 2 sensor 2 which was the downline sensor has been replaced and the code cleared however each time I start the vehicle the light comes back on.  Flipped sensors to see if any other code would come up but no change.

Any ideas?

4 Answers

5,305

Replace your catalytic convertor. The downstream HO2s is only for catalyst efficiency.

3 people found this helpful.
10

Thank you I will give that a try. The shop thinks it is a computer problem. I will report back as to what the issue was once I find out and it is corrected

10

Well I got a direct bolt on replacement for the 2003 Montero from Eastern but no change the light still comes on after turning off the car and clearing the code. THe catalytic converter was 125.00, O2 sensor was 89.00 and light is still on and can not go through emmissions.

1 people found this helpful.
935

I'm having the same problem!!! Gonna change spark plug amd wires when o change the timing belt amd water pump. If that doesn't fix it then I will look in to oxygen sensor and cat. But I think it has 2 cats front y pipe and a rear one?

2 people found this helpful.

Your Answer:

Montero Sport

Looking for a Used Montero Sport in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

CarGurus Experts

  • #1
    Jared Chase
    Reputation
    1,530
  • #2
    Daniel Foster
    Reputation
    940
  • #3
    mikeatpriestlake
    Reputation
    470
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Toyota 4Runner
18 Great Deals out of 514 listings starting at $6,825
Used Lexus GX
42 listings starting at $13,950
Used Jeep Grand Cherokee
110 Great Deals out of 3,487 listings starting at $4,950

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.