# Knock control issue

**URL:** <https://community.ecumaster.com/t/knock-control-issue/6018>\
**Category:** V3 SOFTWARE\
**Created:** [June 15, 2026, 10:19am UTC](https://community.ecumaster.com/t/knock-control-issue/6018 "2026-06-15T10:19:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![goochgangOGmember](https://avatars.discourse-cdn.com/v4/letter/g/839c29/32.png) [@goochgangOGmember](https://community.ecumaster.com/u/goochgangOGmember)\
**Post date:** [June 15, 2026, 10:19am UTC](https://community.ecumaster.com/t/knock-control-issue/6018/1 "2026-06-15T10:19:47Z")

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Hi, I have a problem with the knock action on V3 SW. As shown in the attached log images, two cylinders exceeded the engine noise threshold, and the knock action status is active, but the ignition timing is still not retarding (knock ign corr == 0 and ignition from table is the same as ignition angle).

as new member i can’t add more media. if you have any idea how to fix it please DM me:)

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/5/5ff94c8c05a712439a249150b28a16f6e5b44b1c.jpeg)

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**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:** [June 15, 2026, 1:30pm UTC](https://community.ecumaster.com/t/knock-control-issue/6018/2 "2026-06-15T13:30:28Z")

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![obraz](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/d/dfab9e6e28892d3ff3c027b962a49933a10632ab.png)

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<div class="post-metadata">

**Author:** ![Jadzwin\_ECUMASTER](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/jadzwin_ecumaster/32/28_2.png) [@Jadzwin\_ECUMASTER](https://community.ecumaster.com/u/Jadzwin_ECUMASTER)\
**Post date:** [June 17, 2026, 8:34pm UTC](https://community.ecumaster.com/t/knock-control-issue/6018/3 "2026-06-17T20:34:33Z")

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If you take a look on the screen the ignition timing for the cylinders is retarding. As the knock is per cylinder then this information is keept as a correction channels to base ignition.

![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/8/833c25c0fa852811f64b425dd527742678da88f8.png)