2005 OBXT Stutter on Acceleration and P2096 Code

Asked by Blaizon Dec 17, 2019 at 10:12 PM about the 2005 Subaru Outback 2.5 XT Limited Wagon

Question type: Maintenance & Repair

My car has been stuttering/surging on acceleration for a while now. It has a
check engine light and a P2096 code that tells me that the post catalytic O2
sensor says that it’s running too lean. Some of the things I’ve done to try to
fix it are:
- Cleaned the MAF sensor
- Replaced the fuel filter
- Replaced the upstream O2 sensor
- Replaced air filter

After I got the car back from the shop with a replaced O2 sensor the car was
running great but on more acceleration, I noticed the surging again and
when it persisted, the CEL came back on. The only modification is that I
removed the intake resonator but I sealed the hole and I’m pretty sure I had
this problem before I did this. I’ve heard that it could be a faulty TPS, but I’m
honestly out of ideas. Any help or advice would be greatly appreciated

3 Answers
48,700

TheSubaruGuruBoston answered 4 years ago

So you replaced the REAR O2 also? If it's new then maybe it's not getting hot enough to function correctly, so check the wires and connector to it. I ran into this once when I moved a rear O2 further back (downstream) on a custom midpipe, wherein it didn't get hot enough to function without a software trim.

Mark helpful

Blaizon answered 4 years ago

The rear O2 sensor has not been replaced. I replaced the upstream one before I read the code. I'll check the connection though. Do you think the rear one should be replaced?

Mark helpful

Your Answer:

Related Questions

  • 2005 OBXT Stutter on Acceleration and P2096 Code 3 Answers

    My car has been stuttering/surging on acceleration for a while now. It has a check engine light and a P2096 code that tells me that the post catalytic O2 sensor says that it’s running too lean. Some...

    2005 Subaru Outback 2.5 XT Limited Wagon

    -

    Maintenance & Repair

  • I bought a 2005 Subaru Outback and the headlights in the on position are very dim. 4 Answers

    Checked all the fuses and they are all good. Replaced bulbs with high end ones and no improvement. Fog lights work and brights work.

    2005 Subaru Outback 2.5 i Limited Wagon

    -

    Maintenance & Repair

  • 2009 Outback makes chugging noise on acceleration 1 Answer

    My car makes a low chugging/glugging noise while accelerating. I have not noticed any loss of power, but the car is new to me. There is no hesitation, and the feel of the acceleration is just fine. ...

    2009 Subaru Outback 2.5i

    -

    Maintenance & Repair

  • Loss Of Power on acceleration. what should i be looking for? 2 Answers

    So i have a 2010 subaru Outback wagon. Base model 2.5L 6spd Manual. recently ive had a loss of power on acceleration and had a bunch of check engine lights. I had a P0028 and P0026 (Perm Intake valv...

    2010 Subaru Outback 2.5i Limited

    -

    Maintenance & Repair

  • Shift feel with cvt trans on full acceleration 1 Answer

    I have a 2013 Subaru outback my wife has a 2017 outback and I have a 2020 outback which is a loaner vehicle , the 2017 and the 2020 under full acceleration I can feel and hear them shift but my 20...

    2013 Subaru Outback 2.5i

    -

    Maintenance & Repair

Outback

Looking for a Used Outback in your area?

CarGurus has 871 nationwide Outback listings starting at $1,895.

Postal Code:

Shortcuts

Search Subaru Outback Questions

CarGurus Experts

  • #1
    Mark Weiner
    Reputation
    33,510
  • #2
    TheSubaruGuruBoston
    Reputation
    28,670
  • #3
    Keith Cahalan
    Reputation
    3,390
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Subaru Forester
28 Great Deals out of 1,075 listings starting at $2,695
Used Toyota RAV4
108 Great Deals out of 2,083 listings starting at $3,888
Used Honda CR-V
103 Great Deals out of 3,896 listings starting at $1,795
Used Toyota 4Runner
10 Great Deals out of 304 listings starting at $9,700
Used Subaru Legacy
5 Great Deals out of 173 listings starting at $4,977
Used Subaru Impreza
25 Great Deals out of 476 listings starting at $3,850
Used Toyota Highlander
32 Great Deals out of 738 listings starting at $2,495
Used Toyota Tacoma
55 Great Deals out of 1,071 listings starting at $8,708
Used Honda Pilot
40 Great Deals out of 1,271 listings starting at $4,495
Used Toyota Camry
52 Great Deals out of 985 listings starting at $2,212
Used Lexus RX
39 Great Deals out of 845 listings starting at $3,995

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.