If its not unlocked - DO NOT - connect it to your truck to check if its working, without unlocking it...it will corrupt your trucks PCM. Happened to me and edge was kind to take my PCM in to reflash it and fix the module too for free(they shipped free too).

 

just plugging it in, or did you try to put a tune on it after you plugged it in too. I would think just plugging it in all it would be doing is reading your OBD port and wouldnt hurt anything?

 

Well I bought the diablo predator! It makes a huge difference even with the 87 oct tune! It is a ton more responsive, and it definitely gets up and goes when you punch it now! Now much of a shift lag anymore, especially if you're going up a hill or trying to pass someone on the free way. I'm surprised at how much of a difference it makes, and I'm definitely happy! Good 100$ spent if you ask me Someday I'll try the 93 oct tune..but for now the 87 will do!