# EMU CLASSIC V3 BETA
**URL:** https://community.ecumaster.com/c/v3-beta-tests/emu-classic-v3/17.md
[Latest](https://community.ecumaster.com/latest.md) · [Categories](https://community.ecumaster.com/categories.md) · [Tags](https://community.ecumaster.com/tags.md)
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## [How to upgrade - read first!](https://community.ecumaster.com/t/how-to-upgrade-read-first/5689)
**Author:** [@Jadzwin\_ECUMASTER](https://community.ecumaster.com/u/Jadzwin_ECUMASTER)\
**Replies:** 0\
**Last updated:** [April 28, 2026, 10:12pm UTC](https://community.ecumaster.com/t/how-to-upgrade-read-first/5689 "2026-04-28T22:12:09Z")
After a long period of development, the V3 software for EMU Classic is now available. This is a Beta version, and the following functionality is not yet implemented: CAN support Help sections related to EMU Classi…
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## [About the EMU CLASSIC V3 BETA category](https://community.ecumaster.com/t/about-the-emu-classic-v3-beta-category/5688)
**Author:** [@Jadzwin\_ECUMASTER](https://community.ecumaster.com/u/Jadzwin_ECUMASTER)\
**Replies:** 4\
**Last updated:** [June 2, 2026, 6:51pm UTC](https://community.ecumaster.com/t/about-the-emu-classic-v3-beta-category/5688 "2026-06-02T18:51:40Z")
This category concerns beta testing of the V3 software for EMU CLASSIC.
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## [Boost Control Open Loop](https://community.ecumaster.com/t/boost-control-open-loop/6641)
**Author:** [@AlexJo174](https://community.ecumaster.com/u/AlexJo174)\
**Replies:** 0\
**Last updated:** [October 11, 2026, 3:30pm UTC](https://community.ecumaster.com/t/boost-control-open-loop/6641 "2026-10-11T15:30:29Z")
Hello Guys, im struggeling to get the Boost Controler to open loop. I set everything to 0% in the PID and also deactivated it. I also did the margin to -120 and +120. And try multiply options but i just cant get it t…
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## [Firmware issues](https://community.ecumaster.com/t/firmware-issues/6303)
**Author:** [@nigelrogers](https://community.ecumaster.com/u/nigelrogers)\
**Replies:** 0\
**Last updated:** [August 9, 2026, 7:24pm UTC](https://community.ecumaster.com/t/firmware-issues/6303 "2026-08-09T19:24:37Z")
Can’t get ECU to work after firmware downgrade not detecting bootloader and not recognize in v2 or v3 com port is still active any tricks to fix or ECU is bricked
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## [CLASSIC V3 FIRMWARE - Issues with flexfuel sensor and ignition output](https://community.ecumaster.com/t/classic-v3-firmware-issues-with-flexfuel-sensor-and-ignition-output/6153)
**Author:** [@Gabin](https://community.ecumaster.com/u/Gabin)\
**Replies:** 7\
**Last updated:** [July 9, 2026, 9:31pm UTC](https://community.ecumaster.com/t/classic-v3-firmware-issues-with-flexfuel-sensor-and-ignition-output/6153 "2026-07-09T21:31:25Z")
Hello, I recently upgraded my EMU Classic to firmware V3.066 and I am experiencing two issues that were not present with the previous V2 firmware. 1. Ignition output used for the coolant fan I use one of the unused ign…
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## [Can't get to upgrade](https://community.ecumaster.com/t/cant-get-to-upgrade/5792)
**Author:** [@nigelrogers](https://community.ecumaster.com/u/nigelrogers)\
**Replies:** 5\
**Last updated:** [May 19, 2026, 2:59pm UTC](https://community.ecumaster.com/t/cant-get-to-upgrade/5792 "2026-05-19T14:59:06Z")
I can’t get up upgrade to v3 on classic V3 software not detecting classic is it because it says ultratech
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## [V3 on a Classic... and it works!](https://community.ecumaster.com/t/v3-on-a-classic-and-it-works/5699)
**Author:** [@Alfa105TS](https://community.ecumaster.com/u/Alfa105TS)\
**Replies:** 6\
**Last updated:** [April 30, 2026, 12:50pm UTC](https://community.ecumaster.com/t/v3-on-a-classic-and-it-works/5699 "2026-04-30T12:50:31Z")
I had a bit of time to load the new firmware onto an Emu Classic today. The engine is an Alfa twinspark from a 1988 Alfa 75. It’s a naturally aspirated two litre 4 cylinder, running Alpha-n with ITBs, an IACV and map sen…