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I don't know much about them. I do have one though. But I know you can hook it up to you computer and download, or at least make sure you have the most current software.
If you don't get the answer you need, give Dynatune or FuelMoto a call. They've been very helpful to me and have good reputations here on the forum. I haven't had any issues with my PV, but what you describe sure doesn't sound right to me.
You can also post here in the DIY Engine/fuel/etc forum.