[Dean Feiock]

I think the point that needs to be made is that when using a drive by wire, the computer is running the throttle plate via a DC motor on the side of the throttle body. True in stock form, the computer uses inputs like the APP (accelerator pedal positition) to determine where it wants to drive the throttle plate position to. But it also looks at many, many other inputs to determine not only what the driver wants for throttle, but what the vehicle needs for throttle. On a drive by wire system, the PCM gives you the throttle IT thinks you need, not always what you want.

The fear is that the PCM can be used to drive the throttle plate in throttle stop like manner.
As stated earlier, if you need to slow the car down, program the PCM to only open the throttle plate 70%. No popping, no banging, no fancy ignition box, no fancy tach, just down on power. Or perhaps you cannot cut a light. Program the PCM to open the throttle 1.5 seconds after the APP sees you smash the gas on the top bulb.

I am no computer programmer. But I have been a Chrysler tech for 23 years. I am well versed on these systems. Personally, I believe it would be very easy for someone like me, who knows how the factory stuff works, to team up with a good computer guy and make a controller that could do this stuff.