mirror of https://github.com/speeduino/wiki.js.git
18 lines
897 B
Markdown
18 lines
897 B
Markdown
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---
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title: Barometric Correction
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description:
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published: true
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date: 2021-11-11T07:25:29.014Z
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tags: baro
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editor: markdown
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dateCreated: 2021-11-11T07:25:29.014Z
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---
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# Barometric Correction
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## Overview
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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.
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## Correction Curve
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![baro.png](/img/tuning/baro.png){.align-center width=400}
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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.
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