brentlysubaru Posted February 24, 2018 Share Posted February 24, 2018 I got a 96 impreza 2.2. I was getting a high idle every once in a while it was around 1100 rpm when idling. I changed the iac valve with a known good one. It actually looked like it was new. I was noticing once the valve was taken off there is a rubber insert in the intake. One had a metal plate behind it with slots in it and the other didn't have the metal plate on it was just the rubber insert. I left the plate off thinking it should give it better air flow. Car seems to run fine without it. What is the purpose of the metal plate? Link to comment Share on other sites More sharing options...
idosubaru Posted February 24, 2018 Share Posted February 24, 2018 (edited) Probably a gasket. Can you post a picture? If it’s running properly and the unit plugs in then it’s fine. The thing either vacuum leaks or doesn’t. You’re positive it’s the IAC and not the EHR valve which has a distinctive metal plate as well right? Edited February 24, 2018 by idosubaru Link to comment Share on other sites More sharing options...
brentlysubaru Posted February 24, 2018 Author Share Posted February 24, 2018 I'm unable to post pics but I found one on eBay. https://m.ebay.com/itm/Subaru-EJ25-None-Turbo-IACV-Idle-Air-Control-Valve-Screen-OEM/121429565489?hash=item1c45c42031 Link to comment Share on other sites More sharing options...
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