92 h22a accord, i did search and did alot of stuffs but still can't fix this idle problem, that's y i made a clip to show it
ivac-cleaned
fitv-adjusted
dis cap and rotor-new
motor mounts-filled with 3m
egr vavle-cleaned, egr ports not clean yet

thank you

this is with a/c ON

 

So I'm assuming you're giving it gas, blipping it, in the vid and the issue is that the idle falls low and "rebounds" to a higher idle after a moment?
If it's only when the A/C is on, it's either normal (experienced that myself in other cars) or an issue with the A/C pressure switch (may not be correct name) which tells the ECU to increase the idle (via IACV) when the A/C is on.

 

yes i m giving gas and let go, it drop soo low that almost stall and back up to 800, so there's no way to fix this problem?

 

My car does the same thing, in that it falls to a lower rpm before immediately raising up. Although in my case I believe it only does that while you're moving, not when it's actually at idle. (that's with the clutch in or in Neutral of course)

If you feel it's getting too low ( I'm not sure it's as close to stalling as you think it is) it could be an issue with the IACV (maybe needing cleaned) or maybe a ThrottleBody cleaning is in order.

Otherwise, as far as the A/C pressure switch - if the revs go up a bit when you turn on the A/C (right as the compressor is engaged) then I don't think that's the issue. The rpms may only stay the same when you turn it on, it's if the rpms drop and the engine becomes noticeably rougher that would indicate the ECU isn't getting the signal that the A/C is on or, again, could just be the IACV is clogged and needs cleaned.

 

problem solved

 

What you do to fix it?