2008 Check engine light

Asked by GuruC1T4Z Feb 23, 2019 at 07:19 AM about the 2008 Subaru Outback 2.5 XT

Question type: Maintenance & Repair

I recently purchased 08 Subaru outback, check engine light came on with these
codes Po171 and P1706.  The dealer says 02 sensor... Any thoughts?

2 Answers
65,590

firebird338 answered 5 years ago

If you use the 87 low octane gas all the time try using 89 or 92 octane gas had same problem started using the higher octane gas to make a long story short it took 10 tank fills and check engine light going off and coming on 4 times but light is now off and stays off. Also for got to mention when check engine light first come on the code reader said it was 02 sensor bank one replaced sensor 2 days later back on saying same code that is when I started using the higher octane gas.

Mark helpful
103,435

KenF answered 5 years ago

I'd look for a vacuum leak before anything else. Here is EricTheCarGuy, How To Find A Vacuum Leak: https://www.youtube.com/watch?v=9CPqbaSgcok

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 2008 Check engine light 2 Answers

    I recently purchased 08 Subaru outback, check engine light came on with these codes Po171 and P1706. The dealer says 02 sensor... Any thoughts?

    2008 Subaru Outback 2.5 XT

    -

    Maintenance & Repair

  • Check engine light 7 Answers

    My check engine light is on and the cruise control light flashes. There is also a noticeable gasoline smell.

    2006 Subaru Outback 3.0 R L.L.Bean Edition Sedan AWD

    -

    Maintenance & Repair

  • cold start check engine light 1 Answer

    loss of power, blowing smoke, and check engine light

    2005 Subaru Outback 2.5 XT Limited Wagon

    -

    Maintenance & Repair

  • check engine light 1 Answer

    I've now got 96,000 on my car. For the last year, my check engine light, the VDC light, and the cruise control light slowly blinks-with cruise control not operational. The first few times I went rig...

    2006 Subaru Outback 3.0 R VDC Wagon AWD

    -

    Maintenance & Repair

  • Blinking Cruise Control Light and sollid Check engine light 94 Answers

    I have a 2008 Subaru Outback Wagon 2.5i and the cruise control mantle light is blinking and the check engine light is on sold. The gage put it on the computer and it reset itself. The code was liste...

    2008 Subaru Outback 2.5 i

    -

    Maintenance & Repair

Outback

Looking for a Used Outback in your area?

CarGurus has 960 nationwide Outback listings starting at $1,795.

Postal Code:

Shortcuts

Search Subaru Outback Questions

CarGurus Experts

  • #1
    Mark Weiner
    Reputation
    33,540
  • #2
    TheSubaruGuruBoston
    Reputation
    28,700
  • #3
    Keith Cahalan
    Reputation
    3,390
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Subaru Forester
36 Great Deals out of 1,336 listings starting at $2,295
Used Toyota RAV4
96 Great Deals out of 2,713 listings starting at $2,500
Used Honda CR-V
88 Great Deals out of 4,543 listings starting at $440
Used Toyota 4Runner
15 Great Deals out of 301 listings starting at $9,995
Used Subaru Legacy
11 Great Deals out of 186 listings starting at $3,990
Used Honda Pilot
38 Great Deals out of 1,298 listings starting at $2,995
Used Toyota Highlander
31 Great Deals out of 784 listings starting at $6,500
Used Toyota Tacoma
45 Great Deals out of 1,079 listings starting at $9,399
Used Subaru Impreza
30 Great Deals out of 508 listings starting at $3,444
Used Toyota Camry
62 Great Deals out of 1,074 listings starting at $3,500

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.