Results 1 to 12 of 12

Thread: IAT lo code 23

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Fuel Injected!
    Join Date
    Jun 2022
    Posts
    36

    IAT lo code 23

    How do I disable this code? I don't have an intake air sensor and my CTS/IAT blend tables are all set to 100%. I'm trying to eliminate this as a potential cause of being unable to go into closed loop.

    Before you ask, I did uncheck the boxes that enable code 23 & 25

    My only other suspect is that I connected the brown wire from the LC-2 wideband to the first connector labeled 0 on the ECM, assuming it was for the narrow band reading. It only measures .10 to 1.1 volts between 14 & 15 AFR. I noticed the factory settings were 1.1 @ 14 & .10 @ 15. That seems backwards to me. Am I wrong?

    The yellow wire is connected to the #1 connector and it appears to work the way it should.
    Last edited by Purv-Dawg; 11-25-2022 at 07:36 AM.

  2. #2
    Fuel Injected!
    Join Date
    Jun 2022
    Posts
    36
    I also noticed the coolant temperature isn't updating on the wud unless I turn off the engine and restart. I'm not sure what to make of the issues.

  3. #3
    Fuel Injected! PlayingWithTBI's Avatar
    Join Date
    Dec 2018
    Location
    Tonopah, AZ
    Age
    70
    Posts
    344
    In your WUD did you select File\Preferences\ADC Channels tab to select which channel you connected your WBO2 and which sensor you have? Then go to File\Preferences and select WBO2 (instead of BLM) in the VE Learn box?

    I'm not sure about your CTS issue, sorry.

  4. #4
    Fuel Injected!
    Join Date
    Jun 2022
    Posts
    36
    Yes, that much is all correct. Thank you for the suggestion.

    Does it matter if lambda is selected or AFR with the EBL? I don't think it does but I'm just double checking.

  5. #5
    Fuel Injected! PlayingWithTBI's Avatar
    Join Date
    Dec 2018
    Location
    Tonopah, AZ
    Age
    70
    Posts
    344
    Looking at your 1st post, you have both the yellow and brown wires connected. You only need the yellow wire connected to the zero terminal and configure the EBL for it. Then run on it. You don't need a NBO2 to run in CL, the EBL will only work on one or the other when you select WBO2 or BLM. When you select BLM, it runs on the original NBO2 input in the ECM.

    http://dynamicefi.com/ADC_Connect.php

    WBO2 in EBL.jpg

  6. #6
    Fuel Injected!
    Join Date
    Jun 2022
    Posts
    36
    I figured out the coolant temperature update issue. Apparently you can't turn the smoothing factor to zero or it doesn't update.

    I have the yellow wire running on the second input, #1, and wideband selected. I selected none on the first slot, #0. I can switch the yellow to the first slot if you think that will make a difference. It's tuning well, it just won't go into closed loop for some reason.

Similar Threads

  1. $6e xdf code 36
    By Tunedperformance in forum GM EFI Systems
    Replies: 2
    Last Post: 07-23-2019, 04:29 AM
  2. Need some help with a code 43
    By joegreen in forum GM EFI Systems
    Replies: 3
    Last Post: 07-19-2017, 04:25 AM
  3. Code 36
    By istter1 in forum TunerPro Tuning Talk
    Replies: 0
    Last Post: 01-18-2015, 02:03 AM
  4. code help...
    By ericjon262 in forum OBDII Tuning
    Replies: 15
    Last Post: 03-02-2014, 09:29 PM
  5. Code 59?
    By Badassbird in forum GM EFI Systems
    Replies: 4
    Last Post: 01-27-2014, 05:38 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •