I dont know who makes this magic Alpha unit. Most likely it is just a reworked OEM unit.
Heres the deal on how this thing works. There is 2 potentimeters inside the twist throttle assembly. It is called a comparative circuit in design. In the 10-14 there was just the TPS ( throttle position sensor ) on the throttle bodies, and we still had cables from the twist throttle to the TB's. Now, there is 2 TPS at the twist grip, 5 wires that talk to the ECU ( throttle by wire ) ( drive by wire ) . The first one sets up the voltage and is primary to the ECU, the 2nd one is in sync with the first and tells the ECU is is moving at approximately the same value. The error of difference is 2%. ( well it was in general motors APP ( accelerator petal position ) )
The problem with this design is that the carbon elements of the potentimeter can fail in resistance value at XX throttle position of the hand. So if TPS1 is at 3 volts and TPS2 is at 2.66 volts, this creates the error code and ECU shuts down receiving information and moves to default idle value so you can pull over.
If your twist grip from alpha continues to get out of sync with itself, return it. ( good luck dealing with George on that ) .. Does the alpha really have any advantage over the OEM unit? If you are leaning toward the old days of 1/4 twist turn response, what is going on there is that they are messing with the resistance values in increments. Not really very safe to that.
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