A couple months ago, I added a A/F sensor to my RacePak. On the next outing, after a pass, I pulled the SD card, and when it came up on the computer screen, it said there was a new sensor that was not recognized. The only thing that was recorded was the engine RPM. Before I had driveshaft RPM as well. Thinking my driveshaft sensor was bad, I ordered a new one, and added Vacuum, Fuel Pressure, Oil pressure, and input shaft sensors. After my first pass over the weekend, I still had no data other than engine RPM. Thinking the A?F sensor was messing something up, I removed it from the stack, and tried it again. Nothing... What am I missing? I did the update just like RacePak says to do.