Quote:
Originally Posted by SouthArk370Z
They should be very accurate if you have the proper tires/inflation. Start timer, wait until wheel speed is 60 mph, stop timer. Rinse. Repeat.
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For something like this you may need one of the faster modules, IMO... I had a cheap one and it worked great for scanning and clearing codes...but was SUPER laggy with streaming data... I have an OBDLink LX now and it is much faster.