tHAT IS JIFFJAR PROBLEM, RATTLER HAS NOITHING ON THE PCM AND PCM IS CLEAN STILL WILL NOT SAVE TUNE, SO IF THERE IS NO CURE AND CAN NOT BE FIX THEN THE DIABLOSPORT WILL NOT WORK AND I CAN GET A REFUND, I WOULD RATHER SEE IT WORKING THAN RETURNI IT, CAN WE FIND A CURE. same problem with my 2005 6.0 ...