own 93 del sol si 1.6 sohc vtec, and i bought it from a lady that does not knows how to drive stick tranny..but this car has a automatic ECU (((of course it has the check engine light on))) now when i boght it that car was just fine and i drove it for a year.. now after the year and something of days the engine started to lose the idle. and since then, i never get the right idle, the rev goes up to 3 and then down to 1 in about a second....but the engine does not go off.. it keeps on,.. and everything else is ok but never get the right idle. BUT.. yes i said BUT i notice that sometimes the engine get it right.. yes i suddenly gets steady , but most of the time when i make a stop the idle goes back unsteady and since then i got used to drive it like that, but that unsteady sounds is annoying..
some of my friends said that is my throttle sensor.. but that FR$$# sensor is like welded to the throttle, there is not screw on it.. should i replace the whole throttle body instead?

any advice welcome!!

 

Clean your IACV!
Search and you will find it!

 

yea sounds like iacv most likely

 

yea sounds like iacv most likely

and also check for a vaccum leak

 

these should help

IACV
https://honda-tech.com/forums/acura-integra-6/%2A%2A%2Ahow-clean%2A%2A%2A-your-iacv-k-idle-air-control-valve-1575913/

FITV
https://honda-tech.com/forums/acura-integra-6/%2A%2A%2A-how-%2A%2A%2A-clean-your-fitv-aka-fast-idle-thermo-valve-1564019/