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 located near the transmission's edge over the flywheel gear. It sends a signal to the ECU via the grey wire (T55/49) which https://auto-locksmiths02894.wssblogs.com/29904246/10-easy-steps-to-start-your-own-audi-a1-key-business