Thanks for the response! The LED on the interface box is solid. Everything is normal.... solid LED no check engine light. I have tried two different interface boxes, I have tried the file on two different chips. I would like to say that when I say "it runs like crap" I do not mean that it is running so poor that it seems like it's in limp mode, rather the A/F ratio seems to move approx 1 to 1.5 points richer through the whole map when running on the chip. Yet when running on the Laptop/Romulator the A/F is great. I have tried moving fuel out broadly through the map then burning the chip and I have no luck as the map just seems to go all the heck.