# How to monitor MAF sensor voltage?

**URL:** <https://community.ecumaster.com/t/how-to-monitor-maf-sensor-voltage/3165>\
**Category:** GENERAL\
**Created:** [February 9, 2025, 3:39am UTC](https://community.ecumaster.com/t/how-to-monitor-maf-sensor-voltage/3165 "2025-02-09T03:39:32Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Benonymous](https://avatars.discourse-cdn.com/v4/letter/b/f4b2a3/32.png) [@Benonymous](https://community.ecumaster.com/u/Benonymous)\
**Post date:** [February 9, 2025, 3:39am UTC](https://community.ecumaster.com/t/how-to-monitor-maf-sensor-voltage/3165/1 "2025-02-09T03:39:32Z")

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I have fitted the plug and play ECU to my MINI R50 and i’m having a surge at idle and very poor throttle response. I have already cleaned the MAF sensor but I think it’s still faulty. What is the menu in the software to monitor this sensor?

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**Author:** ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)\
**Post date:** [February 9, 2025, 7:58am UTC](https://community.ecumaster.com/t/how-to-monitor-maf-sensor-voltage/3165/2 "2025-02-09T07:58:54Z")

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What ECU are u talking about?.. Emu black?

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**Author:** ![Benonymous](https://avatars.discourse-cdn.com/v4/letter/b/f4b2a3/32.png) [@Benonymous](https://community.ecumaster.com/u/Benonymous)\
**Post date:** [February 9, 2025, 11:38pm UTC](https://community.ecumaster.com/t/how-to-monitor-maf-sensor-voltage/3165/3 "2025-02-09T23:38:05Z")

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Yes, it’s Emu Black but in the R50 P&P case. I have discovered that the R50 has a MAP sensor (not MAF) and an air flow sensor. I have both out of the car for testing. I was really frustrated yesterday because the car fired up straight away on the new ECU but because of the air sensing, I couldn’t drive it!

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**Author:** ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)\
**Post date:** [February 10, 2025, 12:11pm UTC](https://community.ecumaster.com/t/how-to-monitor-maf-sensor-voltage/3165/4 "2025-02-10T12:11:02Z")

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The main load sensor of the emu black is a map sensor. It doesn’t support a MAF sensor. U need ro look for map value.

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**Author:** ![Benonymous](https://avatars.discourse-cdn.com/v4/letter/b/f4b2a3/32.png) [@Benonymous](https://community.ecumaster.com/u/Benonymous)\
**Post date:** [February 10, 2025, 11:10pm UTC](https://community.ecumaster.com/t/how-to-monitor-maf-sensor-voltage/3165/5 "2025-02-10T23:10:49Z")

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Thanks for the reply 🙂 I’m in the process of familiarizing myself with the software (and the car to a certain extent). I have a replacement MAP sensor on order so hopefully that will solve the problem.