# Quick batch fire injector phase query

**URL:** <https://community.ecumaster.com/t/quick-batch-fire-injector-phase-query/5731>\
**Category:** GENERAL\
**Created:** [May 4, 2026, 7:53pm UTC](https://community.ecumaster.com/t/quick-batch-fire-injector-phase-query/5731 "2026-05-04T19:53:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![matth](https://avatars.discourse-cdn.com/v4/letter/m/f475e1/32.png) [@matth](https://community.ecumaster.com/u/matth)\
**Post date:** [May 4, 2026, 7:53pm UTC](https://community.ecumaster.com/t/quick-batch-fire-injector-phase-query/5731/1 "2026-05-04T19:53:38Z")

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Hello,

I’m setting up a Rover K series, I’m running ITBs and no cam sensor on an EMU Classic.

Coils are output 1 to cyl 1 and 4, output 2 to cyl 2 and 3. Injectors are wired separately.

I have ignition events set:

Event 1 - Ignition output 1

Event 2 - Ignition output 2

Event 3 - Ignition output 1

Event 4 - Ignition output 2

Injector phase I’m unsure of, I have squirt twice set. And phase per the manual:

Injector 1 - Event 1

Injector 2 - Event 3

Injector 3 - Event 3

Injector 4 - Event 1

Is this correct? Why is injector phase 1331, not 1221?

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<div class="post-metadata">

**Author:** ![matth](https://avatars.discourse-cdn.com/v4/letter/m/f475e1/32.png) [@matth](https://community.ecumaster.com/u/matth)\
**Post date:** [May 16, 2026, 9:23am UTC](https://community.ecumaster.com/t/quick-batch-fire-injector-phase-query/5731/2 "2026-05-16T09:23:02Z")

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It seems to work either way! I had it dynoed with 1221 injector phase and it made good power