What is a speed sensor?Pretty much all BMWs use a speed sensor to monitor rpm, ABS and traction control/ASC operation, windshield wiper speed, cruise control and of course the speedometer. In fact, the speed sensor is one of the most vital sensors on the car. The sensor is plugged into the back to the differential and takes its reading from the trigger wheel inside the differential. Like an oxygen sensor, the speed sensor is multi-functional and does a lot more than just send a signal to the speedometer. The DME relies on the speed sensor signal to set the maximum rpm in each gear.
What problems come up with the speed sensor?
What problems come up with the speed sensor?
- Whether you are building a racecar or performing a engine conversion this software can save you from re-wiring the car as you will no longer need to send a speed signal to the ECU (Engine Control Unit).
- If you are an endurance racer this software is a must! As you probably already know, the differential generates a lot of heat and will often melt the speed sensor mounted in the cover. With the sensor destroyed, the ECU would limit engine speed to 6000 rpm! And since most sanctioning bodies don