# Holley efi can and dbc

**URL:** <https://forum.realdash.net/t/holley-efi-can-and-dbc/7039>\
**Category:** General\
**Created:** [November 30, 2024, 4:44am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039 "2024-11-30T04:44:13Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Mohd\_216](https://forum.realdash.net/user_avatar/forum.realdash.net/mohd_216/32/1635_2.png) [@Mohd\_216](https://forum.realdash.net/u/Mohd_216)\
**Post date:** [November 30, 2024, 4:44am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/1 "2024-11-30T04:44:13Z")

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Hey guys I just noticed holley shared some info about there can system

[https://documents.holley.com/techlibrary\_holley\_efi\_can\_information\_\_\_dbcs.zip](https://documents.holley.com/techlibrary_holley_efi_can_information___dbcs.zip)

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**Author:** ![SandHillsHillbilly](https://forum.realdash.net/letter_avatar_proxy/v4/letter/s/db5fbb/32.png) [@SandHillsHillbilly](https://forum.realdash.net/u/SandHillsHillbilly)\
**Post date:** [November 30, 2024, 1:52pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/2 "2024-11-30T13:52:26Z")

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This is fantastic news. I did check they haven’t released CAN Data for the I/O expansion module or the EGT module. There is no data in that file for either module.

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**Author:** ![Mohd\_216](https://forum.realdash.net/user_avatar/forum.realdash.net/mohd_216/32/1635_2.png) [@Mohd\_216](https://forum.realdash.net/u/Mohd_216)\
**Post date:** [November 30, 2024, 11:11pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/3 "2024-11-30T23:11:12Z")

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I saw some guys did some IO expansion modules.

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**Author:** ![SandHillsHillbilly](https://forum.realdash.net/letter_avatar_proxy/v4/letter/s/db5fbb/32.png) [@SandHillsHillbilly](https://forum.realdash.net/u/SandHillsHillbilly)\
**Post date:** [December 1, 2024, 10:59pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/4 "2024-12-01T22:59:10Z")

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Hardwire Electronics has added Holley and FuelTech Can Bus to their files. You may have to install their app to look at the files. I haven’t tried looking at the Can Bus files with Notepad++.

> **[Downloads | Hardwire Elec USA](https://www.hardwire-electronics.com/downloads)**

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [December 2, 2024, 8:18am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/5 "2024-12-02T08:18:05Z")

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> [@Mohd\_216](#):
>
> Hey guys I just noticed holley shared some info about there can system

Thank you for sharing. I will prepare XML files based on those DBC files.

Anyone with Sniper V2 / Dominator / Terminator X and some spare time to test the XMLs?

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**Author:** ![Twinturbozz](https://forum.realdash.net/letter_avatar_proxy/v4/letter/t/dfb087/32.png) [@Twinturbozz](https://forum.realdash.net/u/Twinturbozz)\
**Post date:** [December 2, 2024, 11:13pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/6 "2024-12-02T23:13:30Z")

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I have the dominator

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**Author:** ![Mohd\_216](https://forum.realdash.net/user_avatar/forum.realdash.net/mohd_216/32/1635_2.png) [@Mohd\_216](https://forum.realdash.net/u/Mohd_216)\
**Post date:** [December 3, 2024, 2:18am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/7 "2024-12-03T02:18:00Z")

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I do have holley hp and canable 1.0 can to usb

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**Author:** ![patracy](https://forum.realdash.net/letter_avatar_proxy/v4/letter/p/9de053/32.png) [@patracy](https://forum.realdash.net/u/patracy)\
**Post date:** [December 26, 2024, 12:15am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/8 "2024-12-26T00:15:44Z")

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I have a Terminator X Max and would like to be involved in testing.

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [January 3, 2025, 8:25am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/9 "2025-01-03T08:25:08Z")

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Thank you, I will post XML files here early next week.

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**Author:** ![patracy](https://forum.realdash.net/letter_avatar_proxy/v4/letter/p/9de053/32.png) [@patracy](https://forum.realdash.net/u/patracy)\
**Post date:** [January 7, 2025, 2:22am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/10 "2025-01-07T02:22:07Z")

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Would it be any different from the XML on the github?

> <https://github.com/janimm/RealDash-extras/blob/master/RealDash-CAN/XML-files/Holley/holley_efi_can.xml>

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [January 8, 2025, 6:43am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/11 "2025-01-08T06:43:39Z")

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> [@patracy](#):
>
> Would it be any different from the XML on the github?

Probably yes. I know that XML can be made to work when device serial number is entered into ‘baseId’ attribute, But while I’m working on new versions I try to get rid of that step.

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [January 8, 2025, 1:51pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/12 "2025-01-08T13:51:03Z")

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Test version here (do not install unless testing Holley EFI):

[https://www.dropbox.com/scl/fo/7eyuk9ljagz9bwryi0skc/ACpxItZwkUw2LCW5sCGmHlY?rlkey=rig4fi7n8lp06ebz3ulcge3xz&dl=0](https://www.dropbox.com/scl/fo/7eyuk9ljagz9bwryi0skc/ACpxItZwkUw2LCW5sCGmHlY?rlkey=rig4fi7n8lp06ebz3ulcge3xz&dl=0)

This version contains CAN support for Holley HP Dominator, Terminator X and Sniper V2. I do not have any of these ECUs to test on, but implementation seemed to work fine on our ECU simulator.

As per Holley documentation, supported devices should be:

- All Sniper EFI Products using V2 Software/Firmware and later
- All HP & Dominator products using V4 Software/Firmware or  
Later
- All Terminator X/Terminator X Max Products (V1-V3 Support)

Holley CAN XML files are built-in into this test version. They are also available on GitHub: [RealDash-extras/RealDash-CAN/XML-files/Holley at master · janimm/RealDash-extras](https://github.com/janimm/RealDash-extras/tree/master/RealDash-CAN/XML-files/Holley). Note that these new Holley XML files do not work with currently public (2.4.5) version of RealDash as CAN messages are ‘protected’ with ECU serial number and current version of RealDash is unable to remove this serial number from the CAN frames.

Not all of the CAN frames are implemented, especially on Dominator X, but this should give quite a nice starting point to verify that everything is working properly.

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<div class="post-metadata">

**Author:** ![patracy](https://forum.realdash.net/letter_avatar_proxy/v4/letter/p/9de053/32.png) [@patracy](https://forum.realdash.net/u/patracy)\
**Post date:** [January 9, 2025, 3:30am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/13 "2025-01-09T03:30:18Z")

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I’ll get it loaded up on my head unit tomorrow. We’re supposed to get hit with some nasty winter weather Friday morning, so I’m not sure how quickly I’ll get it connected to the Terminator X.

What are you using as a ECU simulator?

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**Author:** ![clmzntyger](https://forum.realdash.net/letter_avatar_proxy/v4/letter/c/da6949/32.png) [@clmzntyger](https://forum.realdash.net/u/clmzntyger)\
**Post date:** [January 9, 2025, 4:40am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/14 "2025-01-09T04:40:30Z")

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I know you guys are talking about the V2 products, but can you point me in the direction of the Sniper V1 XML file?? Or a file that some one is using to get the CAN data from a Holley SNIPER V1??

Thank you in advance.

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [January 9, 2025, 7:34am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/15 "2025-01-09T07:34:02Z")

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> [@patracy](#):
>
> What are you using as a ECU simulator?

We have a in-house developed simulator system that we can use to simulate pretty much anything. So naturally our simulator implementation for Holley may be wrong as its based on available documentation only.

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**Author:** ![realdashdev](https://forum.realdash.net/user_avatar/forum.realdash.net/realdashdev/32/6_2.png) [@realdashdev](https://forum.realdash.net/u/realdashdev)\
**Post date:** [January 9, 2025, 7:35am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/16 "2025-01-09T07:35:08Z")

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> [@clmzntyger](#):
>
> direction of the Sniper V1 XML file?

This one?

[RealDash-extras/RealDash-CAN/XML-files/Holley/holley\_efi\_can.xml at master · janimm/RealDash-extras](https://github.com/janimm/RealDash-extras/blob/master/RealDash-CAN/XML-files/Holley/holley_efi_can.xml)

I’m not sure if that is for Sniper V1, it has been provided by RealDash user quite a long time ago.

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<div class="post-metadata">

**Author:** ![patracy](https://forum.realdash.net/letter_avatar_proxy/v4/letter/p/9de053/32.png) [@patracy](https://forum.realdash.net/u/patracy)\
**Post date:** [January 9, 2025, 1:21pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/17 "2025-01-09T13:21:07Z")

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A little off topic, but why are you still running V1 software/firmware? V3 has a lot of improvements.

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<div class="post-metadata">

**Author:** ![clmzntyger](https://forum.realdash.net/letter_avatar_proxy/v4/letter/c/da6949/32.png) [@clmzntyger](https://forum.realdash.net/u/clmzntyger)\
**Post date:** [January 10, 2025, 3:32am UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/18 "2025-01-10T03:32:13Z")

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I am talking about Sniper 1 vs Sniper 2 the newest hardware.

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<div class="post-metadata">

**Author:** ![patracy](https://forum.realdash.net/letter_avatar_proxy/v4/letter/p/9de053/32.png) [@patracy](https://forum.realdash.net/u/patracy)\
**Post date:** [January 10, 2025, 12:56pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/19 "2025-01-10T12:56:06Z")

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Ahh gotcha. I thought you were talking about the software side of things. It should ship with V3 loaded on it. Should also work just the same with this. The difference with the sniper series is the canbus port like the terminator/dominator/hp have. They changed the connector to a M8 style connector on the sniper unit. I see there are some optional M8 canbus ports on some of the breakout harnesses though, so you could likely still run the 3.5" display to allow adjusting the sniper and then the other port for the realdash connection. (With a adapter of course)

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<div class="post-metadata">

**Author:** ![patracy](https://forum.realdash.net/letter_avatar_proxy/v4/letter/p/9de053/32.png) [@patracy](https://forum.realdash.net/u/patracy)\
**Post date:** [January 10, 2025, 1:00pm UTC](https://forum.realdash.net/t/holley-efi-can-and-dbc/7039/20 "2025-01-10T13:00:12Z")

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I did get the apk loaded yesterday on my head unit, it seems to function fine. I also saw the new XMLs for holley in the garage settings. I likely won’t get any further until next week though. We’re already 2-3" of snow and it’s showing this snowfall will keep on for like the next 15-16hrs. 😯

(I live in the southern US, so this kinda thing is unusual)

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