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
64,510

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
101,575

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 1,128 nationwide Outback listings starting at $2,995.

Postal Code:

Shortcuts

Search Subaru Outback Questions

CarGurus Experts

  • #1
    Mark Weiner
    Reputation
    33,230
  • #2
    TheSubaruGuruBoston
    Reputation
    28,310
  • #3
    Keith Cahalan
    Reputation
    3,310
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Subaru Forester
39 Great Deals out of 1,353 listings starting at $3,995
Used Toyota RAV4
127 Great Deals out of 3,065 listings starting at $4,999
Used Honda CR-V
181 Great Deals out of 5,013 listings starting at $440
Used Toyota Tacoma
37 Great Deals out of 728 listings starting at $9,975
Used Subaru Legacy
15 Great Deals out of 217 listings starting at $3,200
Used Toyota 4Runner
23 Great Deals out of 545 listings starting at $12,999
Used Subaru Impreza
31 Great Deals out of 666 listings starting at $4,299
Used Toyota Camry
44 Great Deals out of 1,134 listings starting at $4,795
Used Honda Pilot
40 Great Deals out of 899 listings starting at $591
Used Toyota Highlander
43 Great Deals out of 803 listings starting at $7,498
Used Jeep Wrangler
142 Great Deals out of 5,984 listings starting at $6,500
Used Ford F-150
325 Great Deals out of 13,693 listings starting at $3,800

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.