Ok well I bought a cable that plugs into my OBD2 on my car and a cable to convert it to a USB and im uusin g the free LT1 edit program to read the PCM and it connects but it ont log anything nothing will move it just stays where its at like it not really connected but it is. I also tried using a diagnostic program also and that ont connect either, I dont have a COM port on my laptop so I bought that cable to convert it to USB and hen I plug it in it says it cant find the interface why not?