How to Replace an Audi G28 Engine Speed Sensor Charles the Humble Technician teaches you how to replace the G28 Engine Speed Sensor. This sensor is located on the outside of the transmission just above the flywheel gear. It sends a message to the ECU through an uncolored wire T55/49, https://g28carkeys96202.blogzet.com/how-audi-a1-key-became-the-hottest-trend-in-2023-44976708