1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Ground the throttle body

Discussion in 'Gen 3 Prius Accessories and Modifications' started by AzusaPrius, Jun 20, 2024.

  1. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    1,811
    808
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    I have seen user @Eric "v" talk about this and others say it helps.

    The idea is to add a ground wire to the throttle body and ground it.

    The throttle body is floating and not actually grounded as it sits on the plastic intake manifold.

    Anyone else try this and what are your thoughts.
     
  2. soft_r

    soft_r Junior Member

    Joined:
    Feb 25, 2024
    59
    31
    2
    Location:
    Beverly Hills
    Vehicle:
    2024 Prius
    Model:
    LE
    It's horse shit.

    Placebo effect garbage that every car forum somehow talks about.
     
    #2 soft_r, Jun 20, 2024
    Last edited: Jun 21, 2024 at 1:46 AM
    Grit likes this.
  3. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    1,811
    808
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    The throttle body is getting zero ground from it being mounted to the intake manifold.

    Being attached to metal studs is not being grounded, since the manifold is plastic.

    There is one black wire in the harness and that is it and it is thin and long.

    A shorter thicker ground is better.
     
  4. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,719
    15,386
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Is this about gen 3? Are you thinking the black wire to D4 is a ground? Have you thought of looking it up?

    There are two electrical devices on the throttle body: the throttle actuator motor, and the throttle position sensor.

    Which do you expect to work better if you "add a ground wire"? Both? One? Which one?
     
    Mr. F, fuzzy1 and Brian1954 like this.
  5. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    1,811
    808
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    I have no idea but a simple ground wire to the body of the TB can be added or removed very easy.

    Just wanted to see if anyone else has done it.
     
  6. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,719
    15,386
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Do you think there's anything there that would work better with a ground wire? What would that be?
     
  7. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    1,811
    808
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    No chap I just want to add an extra doodad to my engine buddy.

    All placebo for sure and thank you for pointing it all out for me.
     
  8. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,719
    15,386
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    I already understand that pointing it all out for you is a lost cause.

    On the other hand, other people also read PriusChat threads (if they didn't, how would they be able to find your products and discount codes?) and there could be hope for them.

    The fun thing about this particular mod is the way it keeps getting recycled on PriusChat (2005, 2012, 2015).

    The pattern is sort of repetitive, in the way the poster who eventually makes a commercial plug of some sort always starts the thread with a post like "gee, I've heard of people doing this, anybody tried it?".

    I just noticed this is in the gen 3 forum, so there aren't really any questions here that weren't answered in the 2015 go-round that was in the v forum (same throttle body and manifold). I was sort of expecting the next appearance to be in one of the gen 4 or 5 forums, so at least it could say "who knows? maybe the new wiring's different."
     
    fuzzy1 and Mr. F like this.
  9. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    1,811
    808
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    I will just get a ground cable and try it out.

    Anything I say cant be true though with guys like you around to toss their two cents and condescending sarcasm.

    I will wait for your next expected reply.
     
  10. Mr. F

    Mr. F Active Member

    Joined:
    Sep 21, 2020
    360
    210
    0
    Location:
    Washington
    Vehicle:
    2010 Prius
    Model:
    IV
    Some say this gets you:
    This little mod seemingly combines all the benefits of a RedBullet solenoid, a NexCell battery pack, Pulstar spark plugs, a FuelGenie system, AND a Ganador muffler (did I miss one?)! So I guess there's no need to buy all that other expensive crap anymore?
     
    Grit and Brian1954 like this.
  11. AzusaPrius

    AzusaPrius Senior Member

    Joined:
    May 27, 2020
    1,811
    808
    0
    Location:
    California
    Vehicle:
    2010 Prius
    Model:
    IV
    You get an F for effort little buddy.
     
  12. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,719
    15,386
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    Cool! Looking forward to the photo of the installed cable and where it connects.
     
    fuzzy1 and Brian1954 like this.