So recently I figured that my idle problem would be that there was no coolent going to the iacv (there was nothing hooked up to the bottom of it). So the other day I got some lines and hooked everything up as it should be. Started the car up. Let it sit for about 10-15 minutes, and it still idled weird.

Now after driving it for a week, it has not changed at all. Starting it up, it sometimes idles at 1750-2000rpm. And somtimes when I am out in traffic and sitting there, it can get obnoxious and idle above. And sometimes it will fluctuate and bounch around.

I have no idea where to start. I am trying to learn, but I have no idea what it could be. My first thought was that it may be the wrong iacv for my intake mani and it might not seal up correctly. Mainly because there is an extre bolt hole on the iac, and not on the mani. But otherwise, it is a wild guess as to what the problem may be.
Also is throwing a code 14, which is the iacv.
And a code 43, but Im thinking I need a new o2 sensor.

Any help or ideas?

 

change the iacv cause some times they go bad and the idle will mess up

 

up.