Car won't idle

[turboost]

Just what it says. Ever since I set the IAC to 0 like the ME says to it would drop the rpms to about 400 when coming to a stop and then they would come back up but now it just won't idle at all. Any ideas as to what could be the cause of this? Thanks for any help

PS I have had the ME for 5 months and the no idle just started yesterday.

 

[blackbuick87]

You can try resetting the IAC for a very low number like less than 5 and see if it makes a difference. Maybe the IAC is shot

 

[turboost]

You increase the IAC by screwing it in, right? How much does a new IAC cost?