# Wiring Diagram Available for EMU BLACK v2 **URL:** \ **Category:** EMU BLACK / CLASSIC\ **Tags:** wiring, document\ **Created:** [May 8, 2024, 10:19am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336 "2024-05-08T10:19:53Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![michal.kowalski](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/michal.kowalski/32/36_2.png) [@michal.kowalski](https://community.ecumaster.com/u/michal.kowalski)\ **Post date:** [May 8, 2024, 10:19am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/1 "2024-05-08T10:19:54Z")
Dear Ecumaster Community, We are pleased to announce the release of a new example wiring diagram specifically designed for **EMU BLACK setups with 4 cylinders, Drive By Wire (DBW) throttle, and dual camshafts**. This diagram is intended to simplify the wiring process, providing a clear and well-organized guide to assist users in their installations. It’s a general reference and starting point for wiring your EMU BLACK system. _Please note that specific pin assignments may vary based on your individual components and configuration. This diagram is suitable for V2 software. The V3 version will be available soon._ **Download the new wiring diagram from** [Wiring\_Diagram\_Example\_4\_cylinders\_EMU\_BLACK.pdf](https://www.ecumaster.com/files/EMU_BLACK/Wiring_Diagram_Example_4_cylinders_EMU_BLACK.pdf) (0.4 MB). We encourage you to share your feedback and questions in the comments below. Additionally, if you have specific wiring requests for future diagrams, please let us know. Thank you for being part of the Ecumaster community! Sincerely, The EMU BLACK Team ![EMU_BLACK_community](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/1X/755632a6bdd34982e0f449b637b934e9dd899611.jpeg) ---
**Author:** ![h1tman](https://avatars.discourse-cdn.com/v4/letter/h/41988e/32.png) [@h1tman](https://community.ecumaster.com/u/h1tman)\ **Post date:** [May 9, 2024, 9:26pm UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/2 "2024-05-09T21:26:42Z")
![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/1X/0d554c2b87b184efdcbb53605e3decb23e0fe1aa.png) As stated AUX 2 do not have flyback diode so i don`t think it is ok to use it to drive a relay. ---
**Author:** ![syed3000](https://avatars.discourse-cdn.com/v4/letter/s/8797f3/32.png) [@syed3000](https://community.ecumaster.com/u/syed3000)\ **Post date:** [May 10, 2024, 4:26am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/3 "2024-05-10T04:26:02Z")
Hi, still there is no information given about the use of Diodes and Pull-up resistors. I am trying to understand the wiring but do not understand where and why the pull-up resistors and diodes are needed as in the stock ECU they are not needed? Can someone please clear this concept to me and help me understand and how to calculate which resistance I would need please? ---
**Author:** ![michal.kowalski](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/michal.kowalski/32/36_2.png) [@michal.kowalski](https://community.ecumaster.com/u/michal.kowalski)\ **Post date:** [May 10, 2024, 10:59am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/4 "2024-05-10T10:59:52Z")
Thank you for your comment. Since the signal isn’t PWM, it’s safe to use the output without a flyback diode. ---
**Author:** ![michal.kowalski](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/michal.kowalski/32/36_2.png) [@michal.kowalski](https://community.ecumaster.com/u/michal.kowalski)\ **Post date:** [May 10, 2024, 11:20am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/5 "2024-05-10T11:20:00Z")
Thank you for your comment and your interest in learning so to clarify: 1. The diagram offers a practical starting point, not a comprehensive wiring guide 2. Stock ECUs are integrated into specific systems, unlike universal ECUs like the EMU Black, which require user configuration. 3. Understanding resistor values and diode placement involves basic electronics principles. Maybe consider some course on wiring/electronics to gain a deeper understanding. We’re happy to assist you in the future! ---
**Author:** ![Waka](https://avatars.discourse-cdn.com/v4/letter/w/f14d63/32.png) [@Waka](https://community.ecumaster.com/u/Waka)\ **Post date:** [May 11, 2024, 12:41pm UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/6 "2024-05-11T12:41:23Z")
B17,B24 GND? G17,G24 is a mistake? ---
**Author:** ![michal.kowalski](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/michal.kowalski/32/36_2.png) [@michal.kowalski](https://community.ecumaster.com/u/michal.kowalski)\ **Post date:** [May 13, 2024, 7:15am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/8 "2024-05-13T07:15:46Z")
Thank you for bringing the error to our attention. We’ll fix it. ---
**Author:** ![konrad](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/konrad/32/49_2.png) [@konrad](https://community.ecumaster.com/u/konrad)\ **Post date:** [June 3, 2024, 1:43pm UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/9 "2024-06-03T13:43:19Z")
Would it be possible to share editable version of the diagram? When documenting engine / car build I need to create diagrams, would be nice to have same shapes / blocks for consistency. What software are you using for the diagram creation? ---
**Author:** ![h1tman](https://avatars.discourse-cdn.com/v4/letter/h/41988e/32.png) [@h1tman](https://community.ecumaster.com/u/h1tman)\ **Post date:** [September 2, 2024, 8:39am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/10 "2024-09-02T08:39:54Z")
When diagram for V3 will be available ? I will be making new harness and want to switch to V3. ---
**Author:** ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)\ **Post date:** [September 2, 2024, 6:44pm UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/11 "2024-09-02T18:44:40Z")
V3 ist the same in terms of wiring as V2…so u can use the same. U Just have a little more options. ---
**Author:** ![h1tman](https://avatars.discourse-cdn.com/v4/letter/h/41988e/32.png) [@h1tman](https://community.ecumaster.com/u/h1tman)\ **Post date:** [September 3, 2024, 9:03am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/12 "2024-09-03T09:03:54Z")
Yes, im aware of that but maybe there is some other prefered way of doing things on V3 that i can not think of at this moment. Just worth of asking imo. ---
**Author:** ![Greg](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@Greg](https://community.ecumaster.com/u/Greg)\ **Post date:** [September 3, 2024, 9:07am UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/13 "2024-09-03T09:07:42Z")
the only difference can be on dbw that throttle position can be wired to tps . on v2 pedal need to go to tps. but even if is wired as v2 in the software you can select input like on v2 ---
**Author:** ![TurboTommy](https://avatars.discourse-cdn.com/v4/letter/t/8c91f0/32.png) [@TurboTommy](https://community.ecumaster.com/u/TurboTommy)\ **Post date:** [August 29, 2025, 10:29pm UTC](https://community.ecumaster.com/t/wiring-diagram-available-for-emu-black-v2/1336/14 "2025-08-29T22:29:54Z")
Would be nice to have a hardware spec white paper with description of IO and which output has Flyback diodes or switchable resistors with recommendations of which pin is recommended for what. Some other ecu manufacturers have this type of document. I have seen alot of PNP adapters which have issues when the voltage goes back into the ecu thru the diodes or H bridges and holds power to the ecu.