Well I went to have my truck smogged today and my emissions were clean as a whistle....But the idle would not drop below +/- 1400rpm, they will only allow 900(?) rpm. I have noticed that since I have owned my truck that the idle has been high, and seems to have gotten higher. Is there any way to adjust the idle on these things? What are some things that would cause this to happen, there aren't any vaccuum leaks anywhere. I have untill the 26th to pass and need to get this fixed ASAP. Any help is greatly appreciated!