I have and its the same... It ties into the factory sensor so it gets the same info. And I have watched both and they follow eachother perfectly, so the gauge is calibrated correct. Anyway I was just messing around didn't expect anything. Just found it funny that it won't max out at idle, but give it just enough fuel to start moving the tach and railpressure starts going up??? Give it alot of fuel and it maxes out the gauge. I don't understand how that would be possible, its telling itself to give max railpressure the whole time. Just captured that video real quick. How would messing with the accelerater effect anything?