Does anyone remove/cut your Gasoline Particulate Filter (GPF)?

Discussion in 'Gen 5 Prius Main Forum' started by Axl, Dec 13, 2025 at 2:44 PM.

  1. Axl

    Axl New Member

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    GPF's negative effects are larger than positive effects. Especially in short trip.
     
  2. PriusCamper

    PriusCamper Senior Member

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    That might be slightly true in a V8 or V12 engine that's been run at max rpm on a race track. But driving a little four cyclinder Toyota around? There's no way that's going to be an issue.
     
  3. Gokhan

    Gokhan Senior Member

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    I don’t think Prius and other Toyotas in the US have them as far as I know.

    In any case, it is illegal to tamper with any kind of emissions systems, not to mention that the car will fail the emissions inspection or test.
     
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  4. bisco

    bisco cookie crumbler

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    maybe not in AL?
     
  5. Trollbait

    Trollbait It's a D&D thing

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    Albania.
    Europe uses particle filters for gasoline cars. IIRC, it is the same limits as for diesel.
     
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  6. Gokhan

    Gokhan Senior Member

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    So, no GPF and DPF in Albania? :)
     
  7. Trollbait

    Trollbait It's a D&D thing

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    o_O
    Is Toyota making a Euro 5 emission Gen5 for importation to Albania?
     
  8. Gokhan

    Gokhan Senior Member

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    LOL It was meant for humor, asking if Albania was exempt from GPF and DPF requirements.
     
  9. KMO

    KMO Senior Member

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    This is a Europe/USA difference I'd missed. The GPF gets half a page in the European manual about the possible error conditions - posted here for the benefit of others.

    upload_2025-12-16_8-49-46.png
    upload_2025-12-16_8-50-35.png
     
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  10. notspam3

    notspam3 Junior Member

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    Paint flames on your car, it will go faster. If you put bigger tires on the back you will always drive downhill and save gas.
     
  11. Trollbait

    Trollbait It's a D&D thing

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    It appears Albania needs to import all their cars. The AI search response said those cars need to be at least Euro 5 compliant. 5b ended in January 2013.

    Pretty sure Euro 5 didn't require an exhaust filter on petrol cars, but getting a gen5 Prius without one would entail importing from outside Europe.

    Edit: Albania is also working towards becoming part of the EU.
     
    #11 Trollbait, Dec 16, 2025 at 10:56 AM
    Last edited: Dec 16, 2025 at 2:09 PM
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  12. Gokhan

    Gokhan Senior Member

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    Albania is close to my homeland, where we have a lot of Albanians, too. It is kind of an obscure country, yes.

    But is the OP located in Alabama or Albania? I drove through Alabama. @bwilson4web lives there. He would know the local emissions regulations.
     
  13. Trollbait

    Trollbait It's a D&D thing

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    Neither the EPA nor CARB require cleaning up the particle emissions of gasoline cars. Even though they can exceed the limits that put DPFs on all diesels. Requiring a GPF anywhere in the US would be big news.
     
  14. Mendel Leisk

    Mendel Leisk MMX GEN III

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    AL…

    Cavalier location description (in OP’s avatar) is frustrating; half the posts hinge on it.

    It’ll never happen, but it’d be helpful if the site provided a database, that you had to choose from. If you’re in some obscure location: an option to choose nearby city with indication it’s “nearby”.

    So long to “earth”, “somewhere”, obscure suburbs, zip codes, and/or and country-only
     
    #14 Mendel Leisk, Dec 17, 2025 at 11:14 AM
    Last edited: Dec 17, 2025 at 11:20 AM
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  15. Axl

    Axl New Member

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    I searched the manual, I can't find GPF in the manual, there seems not GPF equipped in US.
     
  16. Probity

    Probity New Member

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    I mentioned this in another thread, but since GFP's are being discussed....

    Some have mentioned concern for gasoline particulate filter (GPF) protection (like MillerCat's cat converter shield). My understanding is that US (and Canada?) models don’t have GPF’s on the 2.0 liter M20A-FXS. Europe/other countries Prius models a different story, but no GPF (yet) for the Gen 5. Nothing in US owners manual about regen warning/procedure, the VECI under hood sticker has no GPF notation. In the US, I thought that if a vehicle has a GPF it has to be indicated on the VECI, had to be described in EPA/CARB compliance info from the manufacturer.

    My ’26 VECI notes DFI (direct fuel injection) + SFI (sequential multipoint – electronic – fuel injection), and EGR (exhaust gas recirculation), and EGRC (EGR cooler), and WR-HO2S(2) (2 x wide range/linear/air-fuel ratio heated oxygen sensors), and TWC(2) (2 x three-way catalysts) – but no GPF.

    Toyota’s EPA/CARB Application for Certification 2026 Model Year (for both Prius and Prius PHEV), and CARB Executive Order approvals don’t mention GPF anywhere. Engine Control System Schematic (page 64 for Prius HEV Microsoft Word - FOI_TTYXV02.0H3B_APP_INI_R00(残りバッテリーラベルのみ), page 93 for PHEV Microsoft Word - FOI_TTYXV02.0H3W_APP_INI_R00) don’t show a GPF. Same for the US ’26 Corolla Cross Hybrid with the M20A-FXS.
     
  17. Gokhan

    Gokhan Senior Member

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    It is obviously Alabama. I thought @Trollbait was joking about Albania, but then he seemed serious.
     
  18. Mendel Leisk

    Mendel Leisk MMX GEN III

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    US 2-letter state acronyms leave worldwide viewers stumped. Invest 5 more keystrokes. :rolleyes: