# Wiring AEM 30-0300 X

**URL:** <https://community.ecumaster.com/t/wiring-aem-30-0300-x/3870>\
**Category:** EMU BLACK / CLASSIC\
**Tags:** wiring\
**Created:** [June 15, 2025, 3:38am UTC](https://community.ecumaster.com/t/wiring-aem-30-0300-x/3870 "2025-06-15T03:38:20Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Rwd.Jay](https://avatars.discourse-cdn.com/v4/letter/r/96bed5/32.png) [@Rwd.Jay](https://community.ecumaster.com/u/Rwd.Jay)\
**Post date:** [June 15, 2025, 3:38am UTC](https://community.ecumaster.com/t/wiring-aem-30-0300-x/3870/1 "2025-06-15T03:38:20Z")

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I have a 1jz swapped e30 running a jzx100 harness with the pnp adapter to an emu classic. I want to just run my white analog wire off my AFR gauge to the software I have it wired to B5 (WBO Vs) I have no idea what to do in the program to set voltage or check if it’s even recognizing it. I know I can just wire it directly in I’d just rather run one wire and run it externally I just need it working for some remote tuning

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**Author:** ![Sujaemon](https://avatars.discourse-cdn.com/v4/letter/s/6bbea6/32.png) [@Sujaemon](https://community.ecumaster.com/u/Sujaemon)\
**Post date:** [June 15, 2025, 5:14am UTC](https://community.ecumaster.com/t/wiring-aem-30-0300-x/3870/2 "2025-06-15T05:14:57Z")

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If you want to use the analog output of the AEM, the O2 sensor settings should be set to ‘ExternalController’ and the input pin should be via AnalogIN.

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**Author:** ![Rwd.Jay](https://avatars.discourse-cdn.com/v4/letter/r/96bed5/32.png) [@Rwd.Jay](https://community.ecumaster.com/u/Rwd.Jay)\
**Post date:** [June 15, 2025, 5:27am UTC](https://community.ecumaster.com/t/wiring-aem-30-0300-x/3870/3 "2025-06-15T05:27:37Z")

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Where am I selecting the input at though? I have it set to external but I don’t know how to select the input and make sure it’s workin before I crank

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**Author:** ![Sujaemon](https://avatars.discourse-cdn.com/v4/letter/s/6bbea6/32.png) [@Sujaemon](https://community.ecumaster.com/u/Sujaemon)\
**Post date:** [June 15, 2025, 5:50am UTC](https://community.ecumaster.com/t/wiring-aem-30-0300-x/3870/4 "2025-06-15T05:50:11Z")

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Sensors and inputs \> Oxygen Sensor \> Parameters

 ![スクリーンショット 2025-06-15 14.46.32](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/c/cde1728d68ca6e09ea33f07b780f53aac8d5a7e2.png)

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<div class="post-metadata">

**Author:** ![Sujaemon](https://avatars.discourse-cdn.com/v4/letter/s/6bbea6/32.png) [@Sujaemon](https://community.ecumaster.com/u/Sujaemon)\
**Post date:** [June 15, 2025, 5:59am UTC](https://community.ecumaster.com/t/wiring-aem-30-0300-x/3870/5 "2025-06-15T05:59:04Z")

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For V2, it’s Sensor setup \> Oxygen Sensor.