I have never heard of a explaination of a "Non Interference Engine" like yours. As I understand it to mean is, lets say the timming chain/chains in the engine failed, some valves of the engine will come to a stop, with some of them open. The crankshaft/pistons with a lot more mass will not stop as fast and the pistons would smack into the open valves. The computer has nothing to do with it.
Is the V-6 engine really a Non Interference Motor?