KTuner.com

I just bought the Ktuner for my 2010 v6 AT accord. I am having trouble using it as there are no directions. How do I lock the ecu to the tuner? do I plug it into the car while connected to the computer? do i need to have the car running?

If you haven't visited the downloads page yet, you should: http://ktuner.com/downloads/

If you have, go back and follow the steps that are clearly outlined. See the tutorial videos in the online help, which is step 1.