I am new to tuning. Engine Power Systems did the initial tuning of the PCM. I am going to install 32 lb/hr injectors. I have the tuning software to do so, but I need to have data logging ability to set the fuel trim. I have everything plugged up and running properly, but I can not get any data to come thru onto the laptop so I can see what my fuel trim is. I probably have something set wrong and it's just something stupid and simple. But if anyone has any information that might assist it would be greatly appreciated. Thank's.