I am trying to conect the LC1 to my computer to change the update rate/setting on the LC1 to use with HPtuners. Does the LC1 have to have power going to it to connect to my computer? I didn't have a serial port on my computer. I bought one at radio shack and tried it. when I try to start the LC1 program it says something like: Turn the power on the device to connect.
I tried conecting it to power and ground on the car and still nothing. Does it have to be hooked up to connect to my computer anyway?