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The SimosWiki
This site is dedicated to tuning the Simos(18) family of ECUs commonly found in the MQB platform of VW/Audi cars.
Most of the information here revolves around the use of Eurodyne Maestro. Eurodyne does change some maps and axis names, but the vast majority of ecu strategies are kept consistent with the way Continental designed it. An example of where there's a change in the software is the Boss file wastegate duty tables. The factory uses a complex scheme to calculate the exhaust flow vs Boost, while Eurodyne changes this to use a simple RPM vs. Boost level. Examples of the two different tables are on the Eurodyne Maestro Tables page.
High level overview of ECU operation
Editing Software
Eurodyne Maestro (and HPTuners as of late 2020) are the only software suites that allow for end user modifications to the calibration tables
Eurodyne Maestro Tables is an overview of the tables available in Eurodyne Maestro
Helpful Links
Note: External links will attempt to open in a new tab
Cobb TuningVolkswagen MQB Tuning Guide
Understanding AFR and Lambda
ECUTEK EA888 Tuning Guide
Just saying
As with anything, you make modifications at your own risk. Nobody else is responsible for anything that happens while you're tuning your car.
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SIMOS is a registered trademark of CONTINENTAL AUTOMOTIVE GMBH. This site has no affiliation.
