ECU & DME Technical Wiki
Published articles
Technical reference
MG1 Cylinder Fill and Torque Limitation States
Cedar reference tables for selected MG1 cylinder-fill and torque-limitation monitors.
Technical reference
How to Read a Dyno Sheet
This Dynojet sheet gives you curves, peak values, engine speed, correction, and smoothing. Reading it starts with the question the test was supposed to answer.
Technical reference
What Is an OBD Unlock Patch? Bench Patch, OBD Flashing, and the Tune
An OBD unlock patch changes ECU access. The flashing platform and engine calibration remain separate.
Technical reference
Does My BMW Need a DME Unlock? Build Date, Controller, and Flashing Path
Production date narrows the likely BMW DME unlock path. The controller, software state, and intended flashing platform decide the job.
Technical reference
Stage 1, Stage 2, or Custom Tune? Why the Label Alone Is Not Enough
Stage labels identify choices inside a specific product. The car, controller, fuel, hardware, and goal determine whether a standard choice fits or the setup needs review.