How to Replace an Audi G28 Engine Speed Sensor In this video, Charles the Humble Mechanic shows how to replace the G28 engine speed sensor. This sensor is situated on the outside of the transmission over the flywheel gear. It transmits a signal the ECU via an uncolored wire (T55/49) https://carlocksmiths45953.blogrenanda.com/35799187/these-are-myths-and-facts-behind-audi-advanced-key