You seem to indicate that it’s “an older unit”, which is what I use, actual original Saitek branded throttles, not Logitech branded throttle. What you are describing sounds like the potentiometers might be gunked up, as mine were. You can tell by looking at the smoothness of the throttle motion using the windows calibration window…if it intermittently jumpy, you can try cleaning them fairly easy, I posted how at the post below. Keep the spray handy, because even after you spray them and ge them working for a night, they might still gunk up a little again as it totally evaporates. But it’s a simple check and simple fix, at least for me. Logitech/Saitek throttle quadrants maintenance tip
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