hey everyone, i bought my 92 lude Si about 2 months ago. this week this problem began...

i start the car and it revvs up to 2200 RPMs, then drops to 1200 RPMs, then begins to rev up and down from 1200 to 2200 and back down repeatedly. I took a can of carb cleaner and sprayed every vacuum hose connecting to the IM/TB and saw no leaks. One thing though is that the jumping interval begins to slow as the car reaches its operating temperature. I'm thinking it has to be an idle controller...the IAC perhaps?

any ideas?

btw, i read the "Prelude vs Integra" topic, and i love both cars! i think that'd be the hardest decision i could make!