When the van pulls up to the gate, there is no visible vapor emitting from the tailpipe, even though it is wintertime, and there is always visible vapor at other times.
When the bad guys turn on the TV in the motel, there is a hockey game on. The hockey game is actually the first game from Thin Ice (1988). Since Macgyver is coaching the team in that game, there is no way that he could be in Canada and in Minnesota at the same time.
The voltages present in the toy robot would not be sufficient to make the spark which MacGyver used to ignite the alcohol and stun the bad guys.