Have you calibrated the pedal? Always connect the cable to your pedal first, then connect it to the H90. Then, go into the System menu to calibrate it to ensure the H90 is detecting the full sweep. If it is, you can be assured it’s working properly. If after doing all this you still experience a limited expression range make sure that the parameter’s expression range is not limited inside of the preset’s settings. It could be that a limited range was programmed on mpurpose.