hi guys,

my 96 civic has idling problems. i know this has been discussed a lot times already but there seems to be no concrete solution. with no load it idles at 800 rpm with a/c on it kicks up a bit to 850 rpm. it looks fine but when you rev the engine to about 2k rpm then release the gas pedal, the rpm drops quickly to almost 200 rpm then sets back to its normal setting. some mechanics say my IACV's fine and just needed more air. we tried to adjust the idle screw a couple of times but the problem didn't go away.

someone told me that the culprit maybe the ECU itself or the fuel pump. is this possible? i hope not the ECU...

tia