No engine lights. Truck dies at turns and at stops. Can not keep idle and A/C fa

replaced blower and resistor one month ago. problem found and repaired. first smoke test for vacuum leak EGR valve smoking like a 60's hippy at a rock feast (replaced), still same problem. made another smoke and starter fluid test for additional vacuum leakage, no leaks. removed throttle, cleaned and replace throttle body idle sensor, it's mounted on the right side of throttle body four prong plug-in, on check this out the new sensor in the engine would not run crank over but not run, so I put old sensor in and engine ran like it was, so I took new sensor and stuck screw drive where the butter fly suppose to enter sensor and reinstalled new sensor and low and behold a miracle happened, the truck runs better then ever with 198,000 miles. thanks for the help past this on.

Thought you had A/C fan problem.