1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

3rd gen tacoma Loss of boost at wot after 4500 rpm with magnuson supercharger

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Sifuyota, Feb 20, 2024.

  1. Feb 20, 2024 at 11:34 AM
    #1
    Sifuyota

    Sifuyota [OP] New Member

    Joined:
    May 8, 2022
    Member:
    #396730
    Messages:
    4
    Gender:
    Male
    First Name:
    Peter
    Vehicle:
    21 taco offroad
    21 tacoma MT Loss of boost at wot after 4500 rpm, but boost will return to normal if I let off throttle and get back on. Very inconsistent, other time it’ll gradually loose boost until redline when on wot. Currently tuned with Stryker tune. I have already spoken with yotawerx and he suggested it was mechanical and not tune. I don’t have AFR install yet, only boost gauge. Anyone had this issue or can offer some advice or know a shop between LA and Riverside CA that I can take it?
     
  2. Feb 20, 2024 at 12:09 PM
    #2
    kalaikanui

    kalaikanui Active Member

    Joined:
    Dec 12, 2012
    Member:
    #92977
    Messages:
    26
    Gender:
    Male
    Las Vegas Nevada
    Vehicle:
    2022 Tacoma Trd Sport
    In process: FN Wheels w/ BFG K02's, Bilstein 2/1 lift, Pro grille, tint
    Check blower belt tension....
     
  3. Feb 22, 2024 at 4:48 PM
    #3
    pakm4n

    pakm4n Well-Known Member

    Joined:
    Sep 29, 2023
    Member:
    #434542
    Messages:
    71
    Gender:
    Male
    2023 Tacoma TRD OFFROAD
    Would you be able to get the AFR with a scan gauge?
     
  4. Feb 22, 2024 at 4:49 PM
    #4
    pakm4n

    pakm4n Well-Known Member

    Joined:
    Sep 29, 2023
    Member:
    #434542
    Messages:
    71
    Gender:
    Male
    2023 Tacoma TRD OFFROAD
    Check for a vacuum leak. Maybe where the boost gauge is connected too.
     
  5. Feb 22, 2024 at 5:19 PM
    #5
    Sifuyota

    Sifuyota [OP] New Member

    Joined:
    May 8, 2022
    Member:
    #396730
    Messages:
    4
    Gender:
    Male
    First Name:
    Peter
    Vehicle:
    21 taco offroad
    tensioner seems fine, not sure how tight the belt is supposed to be, but no sign of belt residue due to slipping.

    Did a leak test with diy cap over throttle body, discovered leaks from IAT sensor, replaced o ring, still leaking, realize the leak is coming from the sensor itself, leak more pronounced when not plugged into harness. Couple more leaks from hose connection points from sc to evap.

    When operating the bypass actuator manually, the rod going in and out of the actuator, seems to be rubbing or contacting something inside the actuator itself. I assume this could possibly causing a hang up or it not operating smoothly.

    Been going back-and-forth with Magnuson today, they want me to get it properly diagnosed before sending anything out and that the soap and water method may not be accurate, will see where this goes.
     
    pakm4n likes this.

Products Discussed in

To Top