Well I decided today was the day to swap the ECM. I got the laptop out and paid for another VIN for the SPS system on Tis2000. It took forever on my pos laptop, and that was inside the house. Then I connected everything up inside the truck- the laptop and the Tech2 and all the cabling. Pulled the radio fuse and ECM cover under the hood. Then turned on the laptop and clicked on the SPS menu, chose Tech2 pass through, program and replace ECU, in vehicle, and waited. For 10 minutes and nothing. So I thought I’d see how fast web pages were loading. 5 minutes later and it was only half loaded. This pos laptop has been getting slower and slower, especially after I installed win10 on it. I wanted to smash it in the driveway.I’ll wait until I get the stuff off it I want, then it’s gonna get the sledge-o-matic. I ordered a better refurbished HP off Amazon. It better be faster. I think this one I have is 10 years old. But I’m not going to take a chance on this thing quitting or hanging up in the middle of programming my ECU.