If you buy your lc1 from somebody other than the place you get your gauge... IE I bought a lc1 froma person and a dynotune gauge from them . the instuctions say to plug your laptop to the "in" plug. UHM , that didn't work so after triple checking everyfreakinthing, I stuck in in the out hole and it was not half bad. Seriously, The instructions are backwards. Works great now

 

Yeah I had a similar problem took me bout 30 mins to figure it out. And don't forget that little terminator plug. I still can't remember which plug goes where w/ my LC-1 and XD-16. I just plug them in whatever way works.