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Thread: EFI Connection Tap Signal Interface

  1. #1
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    Default EFI Connection Tap Signal Interface

    We're working on a tap signal interface module to easily make generic open/closed tap up/down switches compatible with the T42 and T43 TCMs. Being that the T42 and T43 are used with Gen IV (58x) systems only, this will be part of the EFI Connection 58x lineup.



    Here's a test (8mb video):
    http://www.eficonnection.com/eficonn...erfacetest.wmv

    5/3/2011 EDIT...here is the completed module. EFI# 110-00025.

    Last edited by S10Wildside; May 3rd, 2011 at 02:44 AM.
    24x LS1 PCM on Early Small-Block Chevy and LT1/LT4
    http://www.eficonnection.com

  2. #2
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    That would be aweseome! Swaps galore will have tap shift access now!

    BTW, the T42 was used with 24x E40s for 05-06, might make a difference integrating an E40 vs E38/67.
    ~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.

  3. #3
    Lifetime Member swingtan's Avatar
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    looks great!

    as a side note, the T42 and T43 are also used with the Bosch controllers on the Holden V6's.

    Simon.

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    Lifetime Member GAMEOVER's Avatar
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    This is cool...
    2008 2WD Ext.Cab Silverado 1500 6.0 V-MAX E38(L76) & T42(4L70E) MAF Only CL Corvette Servo AFE CAI INNOVATIVE LM-2 WBO2

    FLASHSCAN V2 & AUTOCAL

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    I wonder if we could adapt a t43 to an LT1
    "All that is needed for the triumph of evil is that good men do nothing..."

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    Quote Originally Posted by Highlander View Post
    I wonder if we could adapt a t43 to an LT1
    I believe so.

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    How so? That would be WICKED... i already have the ls1 ecu in there.
    "All that is needed for the triumph of evil is that good men do nothing..."

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    With a 58x wheel you can run a E38 and T43

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    A little more about this. The solution will use a Delphi header/connector and CNC milled aluminum enclosure. We are avoiding a generic plastic project box with wire leads to solder to. The module will include an unassembled 6 cavity Delphi Micro-Pack 100 connector. Run your wires to it and make a nice connection.

    Last edited by S10Wildside; March 6th, 2011 at 07:12 AM.
    24x LS1 PCM on Early Small-Block Chevy and LT1/LT4
    http://www.eficonnection.com

  10. #10
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    Quote Originally Posted by ScarabEpic22
    That would be aweseome! Swaps galore will have tap shift access now!

    BTW, the T42 was used with 24x E40s for 05-06, might make a difference integrating an E40 vs E38/67.
    Good call, but I'm not aware of any tap shift enabled 24x vehicles. Might be able to use the newer (58x) TCM calibration with the E40? Not sure if the calibrations will be compatible. That's going to be a trial/error test for sure.
    Last edited by S10Wildside; March 6th, 2011 at 01:38 AM.
    24x LS1 PCM on Early Small-Block Chevy and LT1/LT4
    http://www.eficonnection.com

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