Originally Posted by lifted97ranger
nor any other computer controlled fuel injection vehicle.....idle screws are on carb'd engines..
Not true. Not only is it not true.. but sometimes it is actually there to adjust the amount of air entering at idle. It also keeps the blades from touching the body. That does two things. The computer adjusts for this and trys to get the idle back to the commanded rpm. And it prevents debris buildup where a ridge might form from the two touching.
If you want proof.. I can post a pic of my stock Lightning TB.