I used the earlier version for a short time on my 4Runner.
It is an OK unit but it does not have the resolution as the URD MAF Sensor Calibrator and usually cost more.
It is not a true three dimensional map in it, but you can definitely improve your trucks performance with it.
You can use the same tuning concept as outlined in the URD U-Tune Guide
www.GadgetOnline.com/U-Tune.pdf
You will need a wideband and a scan tool to properly dial it in.
When you say you need help with the sensors, what does that mean?
G