I have a 2000 honda civic LX and yesterday i noticed my car was idling at
about 200rpms when normal idle is about 900rpms.when cold it idles ate
1100rpms then goes down to 200 when it's warm, i also noticed when the
fans kick in the rpms go up to about 600rpms then drops back down.i have a
haynes manual and it suggests the IAC valve, is there anything else that
could cause this.