Turner Motorsport | Performance Chip with Speed Sensor Delete

Performance Chip with Speed Sensor Delete

Part #: 413/506 d-SS

Performance Chips with Speed Sensor Delete

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 DME relies on the speed sensor signal to set the maximum rpm in each gear. Problems can arise if you have re-wired the car for racing use or with an engine conversion. Some of those problems are:

time-consuming re-wiring of the car during engine conversions or when building a racecar harness
low rev limits in each gear
installation of data-acquisition systems no longer use the speed sensor signal

What we have done is remove the lines of code in the chip that require the speed sensor signal. Instead the DME relies on the specific parameters and data points within the chip itself. The speed sensor itself remains installed in the differential cover since other parts of the car require its signal. This is not a catch-all answer to every problem that crops up with racecars or during a engine conversion. But like the other parts we have developed, it makes the job – and life – a lot easier.

NOTE: the speed sensor is different than the top speed governor. These chips DO remove the top speed governor, like all of our normal Performance Chips, but these chips are intended for people who have no use for the speed sensor signal.

To learn more about the speed sensor and how our chip can help you, click here.

You can add the EWS-delete feature to these chips as well. Because of the different combinations and variables with these chips it is strongly recommended you contact TMS for further info and ordering. Prices start at $299. Click here to download the application list, including pricing and ECU numbers, for speed sensor delete chips.