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^ The only real limitation of Natalya's very elegant forced-auto stop is that normal autostop rules still apply. That is, the engine must be warmed up, you must have the climate control set to economy, and it must be above 40F outside. An injector kill switch can kill the engine outside of these conditions.
I use Natalya's system, and to get autostop during winter I added a relay that momentarily bypasses the outside air temperature sensor, and puts a resistor in its place that mocks ~60F. The only reason to use a relay and not permanently replace the sensor with a resistor is that the climate control's blend air door uses this sensor too, and it would throw off the system.
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