ok this is reallly annoying i owned a 86 prelude 2.0 Si and it had an idel bounce but then i totaled it and then got a 1996 prelude Vtec and after i installed the AEM short Ram intake it would only start bouncing when i turned on the AC but now it does it all the time when the engines cold it bounces from 1500 to 2500 and when the engine warms up it goes 1100 to 1900 i did the coolent thingy any IDEAS??? please let me know i mean i think its a vacum hose leak cus like u can really hear the intake suck in air when its in nutral

p.s *idk but theres a loose hose thats suppose to connect to the intake but the AEM intake doesnt have a nipple to put it on all they gave me was a plug to plug it do u think that might have something to do with it?*

 

i got the same problem. if you search you will find like 3 things you can do. clean the iacv, fitv and bleed coolant. i tried all but it failed

 

sorry i cant help. i have the same problem. i called AEM. they told me email them pictures. i did and they never replied. for their service "WELL GET BACK TO YOU, WE PROMISE"...bullshit haha great products though

 

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