Re: Subaru Forester question about CEL and code 2040. The scanner code P0420 also said catalytic converter efficency, Bank 1 if that helps

Terlin77
30

Asked by Terlin77 Dec 29, 2012 at 10:31 AM about the 2006 Subaru Forester

Question type: Maintenance & Repair

1 Answer

Tom Demyan
136,825

Don't just replace the sensor it can be other issues causing the sensor to detect a problem. Check this link out for possible solutions.....http://www.obd-codes.com/p0420

4 out of 4 people think this is helpful.

Your Answer

Add photo

Related Questions

  • Forester CEL blinking, low power, jumpy idle 11 answers

    My 2005 Subaru Forester just passed Rhode Island inspection last week. I didn't use for 6 days. Last night when we got home I moved the car and noticed a strong gas smell. This morning on I drove it c...

    Subaru Forester

    -

    Maintenance & Repair

  • check engine light with flashing cruise control light 128 answers

    Checked codes at Auto Zone: catalyst efficiency low-bank 1 probably cause: CC failure possibly due to: (1) engine misfire or running condition (2) large vacuum leak (3) engine oil leakage into exhaus...

    2005 Subaru Forester XS

    -

    Maintenance & Repair

  • Has anybody had problems with excessive oil consumption in the 2015 Subaru Forester? 250 answers

    I would like to buy a 2015 Subaru Forester in the next few months, but I'm concerned about the excessive oil consumption I keep reading about in older models and I know a class action lawsuit was file...

    2015 Subaru Forester 2.5i

    -

    Maintenance & Repair

  • 1998 Subaru Forester with 270,000 miles on it. 19 answers

    I have a 1998 Subaru Forester with 270,000 miles on it. Seems to work fine, only one owner besides me, Only problem is the Engine Light is on. I've had it a month and have put 1,000 miles on it. Whe...

    1998 Subaru Forester Base

    -

    Maintenance & Repair

  • Engine swap on a 1999 Forester 3 answers

    I have a 1999 Subaru Forester and the engine just burnt up on me. I have been looking at local Junk yards for a replacement; I have called two so far. They have both told me that the motor for a 99...

    1999 Subaru Forester S

    -

    Maintenance & Repair

Search Subaru Forester Questions

Subaru Forester Experts

#1 Nick Eidemiller
Nick Eidemiller
Reputation 2,290
#2 lifeson34
lifeson34
Reputation 1,620
#3 lizlubee
lizlubee
Reputation 1,300
View All

Related Models For Sale

Used Subaru Outback"
240 Great Deals out of 13,022 listings starting at $1,995
Used Honda CR-V"
695 Great Deals out of 50,135 listings starting at $999
Used Toyota RAV4"
662 Great Deals out of 34,070 listings starting at $2,500
Used Subaru Impreza"
168 Great Deals out of 10,130 listings starting at $1,495
Used Subaru Legacy"
167 Great Deals out of 8,610 listings starting at $1,450
Used Ford Escape"
1,058 Great Deals out of 59,694 listings starting at $1,400
Used Toyota Highlander"
427 Great Deals out of 15,911 listings starting at $4,100
Used Subaru Impreza WRX"
11 Great Deals out of 439 listings starting at $13,900
Used Toyota 4Runner"
232 Great Deals out of 10,189 listings starting at $2,388
Used Hyundai Santa Fe"
314 Great Deals out of 23,071 listings starting at $900
Used Honda Pilot"
203 Great Deals out of 11,344 listings starting at $2,900
Used Subaru Impreza WRX STi"
28 Great Deals out of 614 listings starting at $11,500
Used Honda Accord"
1,094 Great Deals out of 69,146 listings starting at $500

Used Cars For Sale

2015 Subaru Forester For Sale
33 Great Deals out of 16,471 listings starting at $19,950
2014 Subaru Forester For Sale
40 Great Deals out of 990 listings starting at $15,430
2013 Subaru Forester For Sale
28 Great Deals out of 568 listings starting at $12,995
2012 Subaru Forester For Sale
31 Great Deals out of 992 listings starting at $11,500
2011 Subaru Forester For Sale
16 Great Deals out of 610 listings starting at $8,333