
}|>  There are two simple procedures for alterating any odometer.
}|> 
}|> 1. Mechanical driven odometer:
}|>     Remove the speedo cable from the transmission.
}|>     Attach a drill and run at max speed until the speedo turns over.
}|>     Continue until the desired mileage is reached.
}|> 
}|> 2. Electronically driven odometer:
}|>     Remove the sensor wire from the sensor.
}|>     Attach the Calibration out signal from an Oscope to the wire.
}|>     Run until the speedo turns over and attains the desired mileage.
}
}Dear Faster.. I kinda wonder.. have you ever tried version 2? On what?
}Since the sensor wire on a BMW feeds also into the computer.. and we
}don't know what signal voltage is expected from it.. bad things
}*could* happen... also since we don't know the pulse rate, we
}may damage the analog part of the speedo (yes.. BMW uses a combined
}instrument.. speed in analog, trip and total milage is digital) with
}the needle pegged up against the 160MPH stop..
}
}Just a thought...

You've got the oscilliscope, so you connect it up to the sensor wire
and measure this stuff.  That way you know what it expects.
