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Fuel injector swap

Discussion in 'Prius c Accessories and Modifications' started by Jumpedinthepriasus, Aug 8, 2024.

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  1. Jumpedinthepriasus

    Jumpedinthepriasus Junior Member

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    2013 Prius c
    Model:
    Three
    Swapped to Corolla/Matrix 1.8L injectors today, Corolla part #23250-21040. Perfect fit: runs just fine without a tune, although I do plan on getting one soon. Only negative was a roughly-tenth of a second increased lag or hesitation off the line when at low idle. Its negligible though worth noting.

    There is a noticable increase in torque in the low end when the engine is already under load otherwise
    though. Slightly more burble after revs as well.

    Took about 30-35min total, only needed a 10mm, 12mm and an 8mm for the pipe clamp on the intake, and some towels for the gas that spills out the fuel rail, though it was only about 2-3oz. Don't overtighten the fuel rail bolts on reinstall; the plugs won't sit right if so.

    Once the intake and EGR valve connection were off it was smooth sailing.

    All current mods are listed in my profile description.
     
    #1 Jumpedinthepriasus, Aug 8, 2024
  2. ChapmanF

    ChapmanF Senior Member

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    What's showing for fuel trim?
     
    #2 ChapmanF, Aug 8, 2024
  3. Jumpedinthepriasus

    Jumpedinthepriasus Junior Member

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    gotta get a better obd2 device, mine only allows me to read/clear thrown codes; although none were shown after the swap, it was as seamless as could be. Id still like to get everything checked and tuned though just to make sure its all good. To my surprise im actually getting better Mpg though, around 34-37city (compared to the 26-30mpg city i was getting after the short ram intake install); i have a long highway trip tomorrow so ill take note of my mpg and update post again tomorrow night. If you are aware of the name of the toyota link device used to load up the obd2 data onto my pc id love if you could link it so i can purchase one
    PS I only ever drive in maintenance mode (TC off) and use B mode almost every time I stop so that the engine stays running at almost all times, so in light of that, 34-37mpg is astounding
     
    #3 Jumpedinthepriasus, Aug 9, 2024
    Last edited: Aug 9, 2024
  4. Blindhopes

    Blindhopes Junior Member

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    2012 Prius c
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    Four
    Hi I haven't been on this site in a long long time. I also have quite the mod list on my Prius C. I have it running on e85 fuel using eflex fuel kit and have gotten a lean fuel error code
    System Too Lean - P0171 Code - Toyota.
    I'm really curious about the fuel injector mod. And wanted to try to install over the weekend to see if it fixes the issue. Have you had any issues?
     
    #4 Blindhopes, Aug 22, 2024 at 3:39 AM
  5. MAX2

    MAX2 Junior Member

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    What are the engine parameters?
    The meaning of long and short fuel trims when the code occurs P0171?
     
    #5 MAX2, Aug 23, 2024 at 1:08 AM
  6. Blindhopes

    Blindhopes Junior Member

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    Four
    I'm not too sure on how to get that info. I do have an OBD sensor.

    I used fuel injectors 23250-0D050 for the 1.8l and it works. No issues yet and did feel a more pep in the seat dyno.

    Does anyone know the difference between the stock fuel injectors and the 23250-0D050/23250-21040
    Like specs .fuel pressure psi and ccs.
     
    #6 Blindhopes, Aug 24, 2024 at 10:24 AM
  7. Jumpedinthepriasus

    Jumpedinthepriasus Junior Member

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    havent had any issues at all, Still tuning great
    i dont have the long term and short term fuel trim data of my old injectors but will reinstall them and replicate the test i did the other day of the 1.8 injectors (link below) would love to hear more about your e85 setup, also as far as the injectors go id just send it on the install because it was super easy, just dont over tighten the fuel rail bolts lol, sprays gas everywhere if you do
    graph
    dashboard
     
    #7 Jumpedinthepriasus, Aug 24, 2024 at 5:11 PM
    Last edited: Aug 24, 2024 at 5:19 PM
  8. Jumpedinthepriasus

    Jumpedinthepriasus Junior Member

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    .
     
    #8 Jumpedinthepriasus, Aug 24, 2024 at 5:20 PM
  9. Jumpedinthepriasus

    Jumpedinthepriasus Junior Member

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    i linked in a reply a moment ago
     
    #9 Jumpedinthepriasus, Aug 24, 2024 at 5:22 PM
  10. Jumpedinthepriasus

    Jumpedinthepriasus Junior Member

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    #10 Jumpedinthepriasus, Aug 24, 2024 at 5:26 PM
  11. Jumpedinthepriasus

    Jumpedinthepriasus Junior Member

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    also did running the injectors clear your diag code?
     
    #11 Jumpedinthepriasus, Aug 24, 2024 at 5:33 PM
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