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Thread: noob, MPVI3 prolink+ AEM wideband install questions

  1. #1
    Tuner in Training
    Join Date
    Apr 2023
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    49

    noob, MPVI3 prolink+ AEM wideband install questions

    30-0300
    mpvi3 prolink plus

    gauge plugged in and wired to +\-
    From gauge green/black wire to prolink+ Blue
    From gauge white/black wire to prolink+ Black

    In VCMscanner I Added channel External inputs > MPVI3 > Prolink+ >input 1 and 2 added
    Then,
    Transform 1/2 to Oxygen Sensors > Air-Fuel Ratio >AEM 30-(03x0) >ok
    Then channels 1 and 2 show same voltages of the Wideband.
    How do I now show the inputs as one gauge wideband O2 lambda?
    Does everything look correct before I finish the wiring for good?
    Another roadblock I just installed the trans and it has no fluid so i cant start the engine.
    Last edited by Windsma; 04-22-2023 at 10:50 PM.

  2. #2
    i am going though the same thing now, and i could very well be wrong but my understanding is the aemnet - and aemnet+ wires (grn/blk, whi/blk) go too a seperate module for purchase through aem. and are not the wires you use to tap into the prolink+

    instead it's supposed to be the white 0-5v analog output positive, and the brown 0-5v analog output negative that you wire directly to the prolink+
    which wires on the prolink im not positive on yet as im still waiting for mine too come in the mail.

    here is a video i found on it.
    https://youtu.be/s_-DOPHVdG8

    hope this helps

  3. #3
    Potential Tuner
    Join Date
    Jun 2023
    Location
    La Crosse, WI
    Posts
    7
    Quote Originally Posted by JR92RS View Post
    i am going though the same thing now, and i could very well be wrong but my understanding is the aemnet - and aemnet+ wires (grn/blk, whi/blk) go too a seperate module for purchase through aem. and are not the wires you use to tap into the prolink+

    instead it's supposed to be the white 0-5v analog output positive, and the brown 0-5v analog output negative that you wire directly to the prolink+
    which wires on the prolink im not positive on yet as im still waiting for mine too come in the mail.

    here is a video i found on it.
    https://youtu.be/s_-DOPHVdG8

    hope this helps
    I struggled with this as well. I opened a ticket with HPTuners and they were not helpful. I could get the analog signal to log fine, but I wanted it to go through the CAN bus. Through a variety of forum posts - ended up connecting a 100 ohm resistor between the grn/blk & whi/blk wires and I immediately started to receive the data stream through the CAN as it is supposed to.

  4. #4
    Potential Tuner
    Join Date
    Jul 2023
    Posts
    2
    Quote Originally Posted by Windsma View Post
    30-0300
    mpvi3 prolink plus

    gauge plugged in and wired to +\-
    From gauge green/black wire to prolink+ Blue
    From gauge white/black wire to prolink+ Black

    In VCMscanner I Added channel External inputs > MPVI3 > Prolink+ >input 1 and 2 added
    Then,
    Transform 1/2 to Oxygen Sensors > Air-Fuel Ratio >AEM 30-(03x0) >ok
    Then channels 1 and 2 show same voltages of the Wideband.
    How do I now show the inputs as one gauge wideband O2 lambda?
    Does everything look correct before I finish the wiring for good?
    Another roadblock I just installed the trans and it has no fluid so i cant start the engine.

  5. #5
    Potential Tuner
    Join Date
    Jul 2023
    Posts
    2
    im trying to figure out the same problem with not much luck. any advice?

  6. #6
    Potential Tuner
    Join Date
    Jun 2023
    Posts
    3
    Also having the issue. Spent all day trying different things, including what OP had done with no luck.