How to Install an AFR Gauge and Wideband Sensor (AEM Series X NB/NBFL) | Supercharging the MX5 Ep 08

Monitoring Air To Fuel Ratios (AFRs) from an engine is crucial for any DIY tuner. Accurate AFR readings give a great indication of how the engine is running at any given time - allowing you to tune to avoid excessively rich or lean conditions. This is especially important in boosted applications - such as turbocharging or supercharging - to avoid engine damage. In this episode I'll be installing the AEM AFR gauge into the MX5 and replacing the OEM narrowband sensor with a Bosch LSU4.9 wideband sensor. I'll then be wiring this setup to the ME221 ECU & calibrating it within the tuning software so the ECU receives an accurate AFR signal at all times. I am installing the AEM X Series but this guide will be applicable to a lot of other popular AFR Gauges such as the AEM UEGO, Innovate MTX-L or LC-2.

Want to know how to install an ME221 Plug & Play ECU? Check out the links below.

✔️ Part 01 :    • Swapping ECUs! ME221 PNP Standalone E...  

✔️ Part 02 :    • Basemap Upload, Sensor Calibrations &...  

The car in this video is my 2001 Mazda MX5 - the latest Fast Rust project car. Fun & reliable daily driver is my goal for this iconic sports car. If you want to follow along with my 'Miata Journey’, check out this playlist:    • Mazda MX5 / MIATA  -  Budget Supercha...  

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► Background Beat : Instrumental produced by Chuki    / chukimusic