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docs: create configuration/Barometric_Correction

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pazi88 2021-11-11 07:25:37 +00:00 committed by Josh Stewart
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---
title: Barometric Correction
description:
published: true
date: 2021-11-11T07:25:29.014Z
tags: baro
editor: markdown
dateCreated: 2021-11-11T07:25:29.014Z
---
# Barometric Correction
## Overview
The barometric correction curve is used to adjust fueling because of altitude changes based on barometric sensor readings. This is especially useful for Alpha-N setups, but may or may not be useful with Speed Density too, depending on the engine setup.
## Correction Curve
![baro.png](/img/tuning/baro.png){.align-center width=400}
In the barometric correction curve Y-axis is amount of fuel and X-axis is the barometer reading. 100% means that no correction is applied. Bigger percentage makes mixture riches and lower percentage makes mixture leaner. By default this curve should be 100% at all points, but the correction can be adjusted based on AFR observations at different baro pressures.