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The Signal Generator plugs into the speedometer gear on the Atlas, and then produces an electrical signal. This signal, which runs through the ERA to the computer, originates from the generator mounted under the driver's seat by Eric Garding of ORU. Theoretically, after some test runs you dial in the perfect setting in the ERA and the speedometer works. This let the truck run and drive and had the tranny shifting. However, there were still some "check engine" lights on, and we felt there were some issues with the way the tranny was shifting. We'll explore those issues and others next month.