I have a problem won"t stay idleing already cleaned throttle body

Be sure that you have changed the correct sensor. There are two that look alike. The ECT has two wires, while the Temp Sender has only one. Also, check for a 5v reference signal, I believe, at one of the wires. If the signal is lower than 5v while the sensor is unplugged, you have resistance somewhere in the circuit and need to trace the wire down. Also, the IAC is a BIG problem with these models. I've just replaced mine, and had to put some HEET in my gas tank. It is a water remover. My vehicle would not stay idling and it ran like a chain smoker on a treadmill. After changing the IAC the ETC Spark Plugs and putting the Water Remover (Heet) in my gas tank, I am glad to say that I've got my Baby Back!