I read on another post that the DOHC engine for this car doesn't have an IAF. That seems to be true as I can't find one; however, I am getting a check engine light, and the diagnostic code indicates IAF circuit high input? I just changed spark plug wires and plugs, for which I had to take off the upper intake manifold. In the process I had to take off a bunch of wires and vacuum hoses. I think I got them back on OK, but I am getting the check engine light now; other than that the engine is running fine.. If there isn't an IAF, what would be up?