0 Items

How to Correct Speedometer for Tire size / Axle Ratio


Click button under picture for detailed instructions.


Prepare

Confirm nGauge has firmware 262 or higher. Firmware is listed at the bottom of the splash screen when booting up.

Click Here for How to Update nGauge Firmware
Click Here to Download the latest Firmware (FW-290)

Navigate

At the main menu, select Tuning then Module Config. Follow the prompts to reach the tire size adjustment screen.

Adjust

Using "+" and "-", adjust tire size. To change to axle ratio, press the Right Arrow. Press the Check Mark when set.

Finish

With size/ratio updated, turn off ignition for 15 Seconds and press the Check Mark to finish.