speedliner

Hi all, I am working on a nice project. (creating an Crankshaft Position sensor signal). I have created a sinus in LabView (that works fine). But now I send this sinus from LabView to a DAQ device and this DAQ is connected to a scope. But on the scope the sinus is different, there is an area in the sinus that isn't right. You will see this at the attachments below. How do I get this error out off the sinus ? So we have a programm ("Create Sinus") where I create the sinus, this program is also linked to the DAQ and to the scope, we have a perfect sinus on the scope. Then the 2nd programm ("Save Sinus") is to capture the sinus made in the 1st program. This is saved in a file. This file is also included in the attachments. In the 3rd programm ("Send out Sinus") we can select the file and send it to the DAQ and the scope, but here the sinus is different and has an error in it. So does anybody have an idea how we can get this error out off the sinus ? Because my project is capturing signals from automotive (like the crankshaft, and so on), this is not good, because this sinus allready is deformed, so if I capture a crankshaft signal and then send it out to the DAQ, then this Crankshaft signal would also be deformed, and that is not the purpose of my project. I want to capture and send out a perfect crankshaft signal... In attachments you will see the 3 programs, the file and also 2 pictures of the deformed sinus. Thank in advance, Phil