Subaru engine light on.

Asked by Feb 27, 2015 at 01:07 PM about the 2010 Subaru Forester 2.5 X Premium

Question type: Maintenance & Repair

During the cold months my Forester's engine light will come on along with flashing cruise.  
Code is for bad converter.  0420 I think.  The light stays on for 50 to 80 miles and then
goes off and will come back on after another 50 miles.  Any clues as to why?  When the
weather warms up the problem disappears.  It is very annoying; I thought Subaru's were
built for cold weather.

1 Answer

6,885

You can search around on forester or Subaru forums (like nasioc) for the fix. The flashing is to warn you that your converter may be harmed by the way the engine is running and not completely burning all / most of the fuel in the air stream. I don't know if it is one issue or several as I've not done any real amount of research on the emissions issue you are having.

Your Answer

Subaru Forester Experts

  • #1
    Nick Eidemiller
    Reputation
    3,850
  • #2
    walth
    Reputation
    3,220
  • #3
    lifeson34
    Reputation
    2,710
View All

Related Models For Sale

Used Subaru Outback
402 Great Deals out of 34,683 listings starting at $199
Used Honda CR-V
778 Great Deals out of 55,567 listings starting at $1,750
Used Toyota RAV4
725 Great Deals out of 45,051 listings starting at $1,600
Used Subaru Impreza
209 Great Deals out of 20,329 listings starting at $1,995
Used Subaru Legacy
237 Great Deals out of 15,507 listings starting at $1,950
Used Toyota 4Runner
265 Great Deals out of 22,419 listings starting at $1,750
Used Toyota Highlander
448 Great Deals out of 29,934 listings starting at $1,900
Used Ford Escape
1,016 Great Deals out of 93,122 listings starting at $1,200
Used Subaru Impreza WRX
58 Great Deals out of 1,288 listings starting at $3,999
Used Honda Civic
783 Great Deals out of 69,943 listings starting at $1,350
Used Honda Accord
1,071 Great Deals out of 56,675 listings starting at $899
Used Nissan Rogue
596 Great Deals out of 69,759 listings starting at $2,499

Used Cars For Sale

2018 Subaru Forester For Sale
24,410 listings starting at $19,791
2017 Subaru Forester For Sale
39 Great Deals out of 1,692 listings starting at $18,995
2016 Subaru Forester For Sale
59 Great Deals out of 1,115 listings starting at $14,400
2015 Subaru Forester For Sale
121 Great Deals out of 2,614 listings starting at $11,995
2014 Subaru Forester For Sale
38 Great Deals out of 1,101 listings starting at $9,990

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.