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Thread: Check Engine Light After Spartan2 Lambda Install

  1. #1
    Garrett booster
    Join Date
    Jul 2020
    Location
    Goshen, New York
    Posts
    132

    Check Engine Light After Spartan2 Lambda Install

    Hey guys,

    So i just installed a Spartan2 Lambda controller with a wide band oxygen sensor. i thought i followed the instructions, but i have a check engine light now. i'm pretty confidet in my soldering, but maybe i have a wire wrong somewhere???

    Here is what i worked with:

    OEM:
    BK/LB - Sensor Ground
    BK/DG - O2 Sensor Signal
    BK/TN - Heater ground
    DG/OR - IGN Feed

    Spartan2:
    Red - power
    Black - Electronics Ground
    White - Heater Ground
    Green - Linear output
    Brown - Simulated narrowband output

    What I Wired:
    OEM Sensor ground to Black Spartan
    OEM O2 Sensor signal to Brown Spartan
    OEM Heater ground to White Spartan
    OEM IGN Feed to Red Spartan

    Here are some pics if that helps...






    Not gonna lie, feeling kinda dumb right now, and i'm sure that i missed something simple.

  2. #2
    Garrett booster
    Join Date
    Jul 2020
    Location
    Goshen, New York
    Posts
    132

    Re: Check Engine Light After Spartan2 Lambda Install

    Yup I’m an idiot. Accidentally disconnected the boost gauge and it threw the check engine light 😑
    Last edited by Fenderbass; 08-19-2020 at 05:28 PM.

  3. #3
    Supporting Member Turbo Mopar Contributor
    Join Date
    Feb 2015
    Location
    toronto
    Posts
    1,766

    Re: Check Engine Light After Spartan2 Lambda Install

    Quote Originally Posted by Fenderbass View Post
    Yup I’m an idiot. Accidentally disconnected the boost gauge and it threw the check engine light 
    Good news that it was an easy fix
    Regards,
    Miles

    DD '87 Sundance T1, SLH with rear disks
    '87 CSX #432 2.5 CB TII, SLH

  4. #4
    Garrett booster
    Join Date
    Jul 2020
    Location
    Goshen, New York
    Posts
    132

    Re: Check Engine Light After Spartan2 Lambda Install

    Quote Originally Posted by chromguy View Post
    Good news that it was an easy fix
    Ya it was super easy to install. I must have unplugged the vacuum while i was pushing the cables through the firewall.

    It's always the simple things lol.

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