Got a problem. My car is at the tuner. they installed the HKS DLI II but the car won't start now. They unplugged it then the car started right up. Tomorrow they gonna put it on another Z to see if the unit is defective and if that Z doesn't start then its the unit or they inproperly installed it. Has anybody had this problem? I was told it hapens a lot and its a grounding issue. HKS is closed on weekends so I can't consult tech support until monday. Any suggestions?