1995 Civic Rough Idle IACV Check

UPDATE: I had a surging idle problem with my 95 civic DX. I went down the wrong path trying to check the MAP and the electronic IACV, as shown in this video.

Turns out I just needed to adjust the Cold Fast Idle Valve by rotating the seat. I removed the valve and put a pot of water on the stovetop, and dropped the valve into the water. I heated it to 100degF. Then I adjusted the valve until it was just barely starting to open when the temp was 100degF.

Then I re-assembled and problem is solved.

For an excellent overview of this problem,
https://youtu.be/hB44oejFsL4

Видео 1995 Civic Rough Idle IACV Check канала sac78008