Mainline dyno help

Hey guys I'm new to mainline and I have a problem that my dyno reads to high horse power and sometimes too low like yesterday I got a bmw that is only 10psi and the horse power is 1900hp I tried changing the ramp rate something I calibrated the rpm of the car with the dyno pls help

Is this a new installation, or a new problem that is just now happening, but it worked correctly previously. I hear that Mainline support is very good, particularly through the person you purchased the dyno from. Did you start there?

The dyno is at the shop for a while now I'm just new to the shop before a month it was all good now this thing happened I did not get to contact them yet I think I will do that