# Unable to run on V3 on V2 crank/cam settings

**URL:** <https://community.ecumaster.com/t/unable-to-run-on-v3-on-v2-crank-cam-settings/6277>\
**Category:** V3 SOFTWARE\
**Created:** [August 4, 2026, 11:01pm UTC](https://community.ecumaster.com/t/unable-to-run-on-v3-on-v2-crank-cam-settings/6277 "2026-08-04T23:01:33Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![gctech](https://avatars.discourse-cdn.com/v4/letter/g/e480ec/32.png) [@gctech](https://community.ecumaster.com/u/gctech)\
**Post date:** [August 4, 2026, 11:01pm UTC](https://community.ecumaster.com/t/unable-to-run-on-v3-on-v2-crank-cam-settings/6277/1 "2026-08-04T23:01:34Z")

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I’m having an issue I just finish one of my builds and Could not get it to run on V3 , but I did on V2 perfectly, I copy the trigger settings from V2 to V3 one by one and it wont start feels like is not firing on the correct order , I check base timing with timing light and it matches the timing gun

I do not know if I’m missing a setting

here are the files

> **[CAS Scope.emubscp3](https://drive.google.com/file/d/1Qhqc5xIOisFgx27wgCcNZRxZFfyctJUO/view?usp=sharing)**
>
> Google Drive file.

> **[cas settings.emub](https://drive.google.com/file/d/1B6NW7U-wGmDJAw0eBa2uKeFuzKAKFOUi/view?usp=sharing)**
>
> Google Drive file.

> **[cas settings running.emublog](https://drive.google.com/file/d/1nslfwfWC3Os3qNfia-nKPKkmHCbhXVNK/view?usp=sharing)**
>
> Google Drive file.

> **[Base Map V3-3.061.emub3](https://drive.google.com/file/d/1xjB1XizU94E_gqQHegaZHaO9M0GoJ5Jh/view?usp=sharing)**
>
> Google Drive file.

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<div class="post-metadata">

**Author:** ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)\
**Post date:** [August 5, 2026, 10:44am UTC](https://community.ecumaster.com/t/unable-to-run-on-v3-on-v2-crank-cam-settings/6277/2 "2026-08-05T10:44:46Z")

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Did u try invert phase or starting with wasted spark?

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<div class="post-metadata">

**Author:** ![gctech](https://avatars.discourse-cdn.com/v4/letter/g/e480ec/32.png) [@gctech](https://community.ecumaster.com/u/gctech)\
**Post date:** [August 5, 2026, 1:51pm UTC](https://community.ecumaster.com/t/unable-to-run-on-v3-on-v2-crank-cam-settings/6277/3 "2026-08-05T13:51:31Z")

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I did , but the result did not improved much still wont run and will back fire on intake, yet did does not happen on V2 that is the main concerned

Timing locked at 0\* with timing light pulley at TDC and CAM sprocket verified at TDC as well the common trigger setting procedure , the only difference is even for some reason this is not working on V3

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<div class="post-metadata">

**Author:** ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)\
**Post date:** [August 5, 2026, 2:21pm UTC](https://community.ecumaster.com/t/unable-to-run-on-v3-on-v2-crank-cam-settings/6277/4 "2026-08-05T14:21:12Z")

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Can u post a log while starting?  
I assume ur trigger settings are correct. Looking at ur fuel settings i assume u are flodding the engine. 30ms prime pulse is a lot. Ur VE seems not high but probably u take the VE from V2.

I think u should play with fueling.

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<div class="post-metadata">

**Author:** ![gctech](https://avatars.discourse-cdn.com/v4/letter/g/e480ec/32.png) [@gctech](https://community.ecumaster.com/u/gctech)\
**Post date:** [August 5, 2026, 4:31pm UTC](https://community.ecumaster.com/t/unable-to-run-on-v3-on-v2-crank-cam-settings/6277/5 "2026-08-05T16:31:15Z")

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Fixed, I totally skip the injector and ignition output tables and had the assigned wrong as firing order instead by cylinder designation 😅