i have an OBD1 DC2 and it has a pretty high idle. it idles at about 1300. every now and then i get a CEL. i check it out and its Code #14 which is the IACV system. I was told it could be either the IACV or the FITV so I changed them BOTH and i still have the same problem. I checked to see if i have a vacuum leak but i can't seem to find one. keep in mind that the CEL only comes on sometimes. any suggestions thanks.