This is what ive learned from doing it myself. This should help in case you have the same problem.

If you have an H22, or in my case it was an F20B, and you want an H22 EuroR Intake Manifold ( http://shop.store.yahoo.com/yh....html ) then you will discover that the IACV bolt pattern is bassackwards than on the stock manifold.

When i came across this i didnt know what to do. I got to thinking that since the F20B was originally designed for the S2 that maybe there would be a similarity and the F20C IACV would match up for some reason...........i was right. I got an F20C valve and it bolted right up.

All confusing BS aside, an S200 Idle Air Control Valve will bolt directly to the H22 EuroR IM. Problem Solved.

 

Is the S2000 IACV compatible with OBD1 ECU's? If so, that's an awesome find!

 

so is the s2000 iacv a two wire piece?

i currently have a euro-r motor in my driveway and cannot find a 2 wire iacv that will bolt-on and replace the 3 wire iacv that is currently on the euro-r intake manfold. i will be using a p28 ecu with hondata.