The k40 was soldered by an electrical engineer with a magnifying glass. Also, the ccps was replaced once before the soldering and twice after, which makes it seem like there is no difference. Lastly, the car was running, just stalling a number of times, before and after the solder job, so the soldering didn't make a difference in performance in the vehicle.

If there is some circuitry in a K40 that could be crossing that would blow the CCPS then that would explain why the CCPS's are internally blowing out and not sending a signal when tested. Does anyone know if they are linked and how?