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Thread: flash pinouts

  1. #1
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    Default flash pinouts

    the bench harness tutorial is a bit outdated at this point. does anyone have E78 and E83 flash pinouts?

    TIA

  2. #2
    Joe (Moderator) joecar's Avatar
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    You will need to look at a wiring schematic for each of E78 and E83 powered vehicles (of which I don't have).

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    Quote Originally Posted by joecar View Post
    You will need to look at a wiring schematic for each of E78 and E83 powered vehicles (of which I don't have).
    neither do i.

  4. #4
    Joe (Moderator) joecar's Avatar
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    What year/model/vehicles are your ECM's from...?

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    i have a new E76. i have no E83 yet.

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    GM Service Manuals or DVD - absolutely indispensable, and worth the cost in the long run.


    Regards,
    Taz

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    Vector, send me a pm I have access to what you need and then some.
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

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    I have also been looking at the pcm flash pinouts for the newest ecms, and if I get some free time would like to help update that tutorial.
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

  9. #9
    Lifetime Member GMPX's Avatar
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    I think Paul has the originals of the pin-out documents (I hope so, because I don't).
    I'll send him the details for the E39, E78 & E83. I think that should cover all the missing ones.
    I no longer monitor the forum, please either post your question or create a support ticket.

  10. #10
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    Download station info E78= J1-19=battery pos
    J1-20=battery pos
    J1-43=can low
    J1-29=can high
    J2-13=switched 12v+
    J2-28=switched 12v+
    J2-73= gnd

    E39= J1-20= gnd
    J1-30=gnd
    J1-39=can high
    J1-40=can low
    J1-51=switched 12+
    J1-52=battery pos
    J1-71=switched 12+
    J1-73=switched 12+ Note all pins are in J1 so we don't have the added cost of J2
    be sure to use a power supply rated for at least 3 amps as the e39 pulls a lot of current
    E78 is the same as the mt-88, Entrol 88
    we also put an led on the fuel pump relay pin to see if the cal is valid
    Questions? give me a call Steve 909 910 3867
    Last edited by efiharness; August 8th, 2012 at 10:34 PM.

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