OBD reader for track addict

Originally Posted by geeteezee

Don't mean to hijack the thread but, do you also get the above data in Harry's?
All I've been able to figure out is timer, map and speed, which is via GPS and is awful since I don't have an external unit that does more than 1Hz. I thought it would pick up a wheel speed sensor. Maybe I'm doing something wrong.
Also, do you have gear selection display in the instrument cluster? I wonder if it still works if your car doesn't have the option.

Originally Posted by Corsairprime

Check out the Laptimer video I took on YouTube:

Link: https://www.youtube.com/watch?v=CkYGxrg0yQE

I used the Samsung GS9+ and the OBDLink MX with Harry's laptimer. I get RPM, Speed, Map, Gears with Tach behind, Pedals (Both) Fuel left, Coolant temp.

Originally Posted by SonicVQ

The "Gear" is calculated from engine RPM and vehicle speed, so it should work on all vehicles. (Engine RPM and vehicle speeds are EPA/CARB mandatory PIDs)

Harry's documentation refers to "wheel speed" but uses the OBD PID ($0D) for vehicle speed. Overall it is the same thing, unless you want to log left/right wheel speed to calculate slip.