How To Use Your Autotune Function | Ecumaster

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Autotune functionality is commonplace on many aftermarket ECUs now, providing the potential to speed up the tuning process. It’s important to understand how to use these functions though if you want to get reliable results.

In this webinar, we’ll look at the autotune functionality on the Ecumaster EMU Black ECU using our V11 Subaru STI, although the knowledge will apply to a much wider range of ECU's and vehicles than just these.

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0:00 - Intro
1:05 - Why do we need a closed-loop fuel control
2:50 - Not a bandaid for doing a poor tuning job
5:00 - Software tour
5:15 - Main VE + lambda target tables
7:35 - Getting AFR data into the ECU
9:25 - Making tuning changes before or after closed-loop control is dialled in
12:30 - Setting up closed-loop control
17:55 - Exhaust gas oxygen update interval
22:40 - Changing proportional elements
26:20 - Changing integral elements
28:05 - Autotune functionality
35:00 - Questions

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