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Thread: E38 Standalone harness ?'s

  1. #1
    Lifetime Member GAMEOVER's Avatar
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    Default E38 Standalone harness ?'s

    I finally got ahold of pinouts and schematics to make a standalone harness for a (E38) 2007 Silverado 5.3ltr**58 Tooth Reluctor & Electronic throttle... After looking over the pinouts, quite a few pin assignments refer to "LOW REFERENCE" Does that mean ground? Or? I don't want to proceed till I know what Low Reference is referring to...
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    Last edited by GAMEOVER; September 12th, 2009 at 08:24 AM.
    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

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  2. #2
    Lifetime Member GMPX's Avatar
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    They are all common grounds.
    You just need to connect to the 'big' ground pin, which is Pin 73 on the black plug.
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
    Lifetime Member GAMEOVER's Avatar
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    Quote Originally Posted by GMPX View Post
    They are all common grounds.
    You just need to connect to the 'big' ground pin, which is Pin 73 on the black plug.
    OK cool! Thanks Ross...
    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

  4. #4
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    the low references are for the sensors. You need to follow the circuit number back the the sensor otherwise it won't see the right low ref from the sensor and the computer will not be happy.

    P.S. Ross, I still haven't got this combo to work stand alone yet. I must be missing something.

  5. #5
    Senior Member doubledip's Avatar
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    what doesnt work... what is the combo ?
    ---------------------------
    E38's got to love them
    E40's hate 'em

    LS1's is there anything it wont work on

    Holden VE SSV - GEN46L

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  6. #6
    Lifetime Member mr.prick's Avatar
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    2007 6.0L Vette E38.zip
    Here are the pinouts for a Vette (E38)
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  7. #7
    Lifetime Member GAMEOVER's Avatar
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    Here are the pinouts for the 2007 Silverado E38 ECM & T42 TCM
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    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

  8. #8
    Lifetime Member GAMEOVER's Avatar
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    Here are the connector end views:
    ***Note the 3rd connector is the TCM connector end view***
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    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

  9. #9
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    Ross,
    Do you know if there is a catch in the software that doesn't allow the injectors to be fired if no oil pressure is seen? I don't have the oil press. sensor hooked up right now and I think that might be what is bagging me.

  10. #10
    Senior Member doubledip's Avatar
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    We have done a few looms without the oil pressure sender connected and they are fine... sounds like VATS in the software or injectors dont have 12v power... (possible wiring fault)
    ---------------------------
    E38's got to love them
    E40's hate 'em

    LS1's is there anything it wont work on

    Holden VE SSV - GEN46L

    www.ultimateconversionwiring.com.au

    www.dualflash.com.au

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