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While I’ve been searching seems I saw somewhere someone talked about cleaning the IACV. As my idle is acting weird, I’m thinking to do that to eliminate it from my thinking. Anyone know how it can be done.? If not I’ll see about getting a new one but only if the one I have can’t be cleaned. I didn’t know they could be.
Found a link in one of Sean’s posts that goes straight to the Prelude maintenance manual and the tabs work to go to individual sections to do research. THANKS SEAN !
 

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1989 Accord LXi Coupe; 1989 Prelude 2.0s; 1964 Dodge Dart GT: 1993 Kawasaki ZX-11; 1982 Honda CB900
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I have found this usefull as well. Replace ALL the temp sensors on the Radiator and Thermostat housing. Once u have a nice and clean IACV having new and accurate sensors makes the "fix" even more stable. Once I did that to mine, no more idle surging...
 
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