I have 2000 Silverado 5.3L was driving home the other day I had the truck in cruise after taking it out of cruise **** hit the fan idle is higher,trans shift harder.then everything just cutted out lost all power the gauges went crazy before it shutted off it blew the ecm fuse.I thought it was the fuel pump but it wasn't,so as of now the truck runs but surges at idle,the battery light is on while running I have no security light on at all even with the door open it still will not light up the fuel gauge doesn't work,also it will not let me scan the truck im getting a linking error never had that problem before yes I used this scanner on this truck before.Im thinking it the BCM?ECM ground?i also understand that the obd port is ran off of the cigar power all of the port work still cant scan it.Please any suggestions will help thanks. yesterday I scanned the truck I got a code for tps sensor which I replaced just now,and a p1639 code?