Results 1 to 8 of 8

Thread: help deciding what pcm and tcm to run for project (24x, 4l80e) 0411/TAC or E40/T42!

  1. #1
    New Member
    Join Date
    Mar 2013
    Posts
    2

    Default help deciding what pcm and tcm to run for project (24x, 4l80e) 0411/TAC or E40/T42!

    Well I decided to register...I found I've been here for the past few hours doing research.

    I am in the process of selecting which computer setup for a twin turbo project. Thought it may be wise to look for some input.

    Details:

    6.0L LQ4
    24x reluctor wheel
    ls2 throttle body
    4l80e transmission

    I have both a e40/t42 and 0411/TAC with corresponding harnesses so I can use either.

    I like the e40 and t42 because they are more compact, and i can use the 90mm ls2 throttle body.

    I like the 0411 because I can plumb in a flex fuel sensor (big plus!) and they seem to be easier to work with....its also the original computer from the engine/trans (03 Silverado 2500 6.0l/4l80e), but I have to run the 75mm truck throttle body.

    thoughts?

    thanks!
    Last edited by darkostoj; March 6th, 2013 at 04:48 PM.

  2. #2
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003
    Posts
    13,148

    Default

    Stick with the 0411 PCM for sure.
    I don't think there was ever an E40/T42 with 4L80 combo from GM, so there's your first problem.
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
    New Member
    Join Date
    Mar 2013
    Posts
    2

    Default

    Quote Originally Posted by GMPX View Post
    Stick with the 0411 PCM for sure.
    I don't think there was ever an E40/T42 with 4L80 combo from GM, so there's your first problem.
    i did download a file from somewhere else. It was a 07 sierra with a e40 pcm t42 tcm and 4l80 transmission

    http://forum.efilive.com/showthread....-T42-4L80E-cal

    Out of curiosity what are the reasons for sticking with the 0411 pcm?

  4. #4
    Lifetime Member
    Join Date
    Mar 2006
    Posts
    4,935

    Default

    E40/T42 with a 4L80E wasnt ever a factory GM combo, have to run a 60E T42 OS and swap the pins.

    Id go with the 0411 for ease, but up to you.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  5. #5
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003
    Posts
    13,148

    Default

    What Erik said, go for the 0411 for ease, it's a proven thing, less complexity for conversions and lots of different factory engine/trans combos were used on it. In fact, GM should still be using it
    I no longer monitor the forum, please either post your question or create a support ticket.

  6. #6
    Lifetime Member
    Join Date
    Jul 2003
    Posts
    1,897

    Default

    I wished it spit data at 40FPS
    "All that is needed for the triumph of evil is that good men do nothing..."

  7. #7
    Member
    Join Date
    Mar 2012
    Posts
    57

    Default

    Run a X-Link with the 90 mm TB. We run one on our 4500 Ultra 4 Car with a LS1B PCM. It has worked great so far.

    http://www.torquerush.com/

  8. #8
    Lifetime Member
    Join Date
    Jul 2003
    Posts
    1,897

    Default

    I haven't had an issue where the throttle body doesn't open completely....
    "All that is needed for the triumph of evil is that good men do nothing..."

Similar Threads

  1. 0411 PCM used to run a '96 4.3 V6 Vortec Engine
    By Ben_R in forum Vortec V6/V8 Specific
    Replies: 2
    Last Post: November 24th, 2011, 05:55 AM
  2. deciding weather to tune myself
    By BlakeA in forum Duramax 06 LLY / 06+ LBZ & LMM
    Replies: 2
    Last Post: March 26th, 2010, 06:16 PM
  3. Holden V8 - reluctor 24x with LS1 PCM
    By Batman in forum Conversions / Aftermarket Parts
    Replies: 4
    Last Post: July 21st, 2009, 04:36 AM
  4. EFI Connection "24x" System and LS1 PCM for Early Small-Block Chevy
    By S10Wildside in forum Conversions / Aftermarket Parts
    Replies: 2
    Last Post: June 1st, 2009, 02:53 PM
  5. EFI Connection "24x" System and LS1 PCM for LT1/LT4 Engines
    By S10Wildside in forum Conversions / Aftermarket Parts
    Replies: 1
    Last Post: May 26th, 2009, 12:54 PM

Posting Permissions

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