I Just got an H22 installed in my 91 accord and the idle jumps back and forth from a little under 1000 to 1500 or so only when the car is warmed up and even then sometimes it doesnt do it at all. but 99 percent of the time it does.... the garage i had it installed in said that they couldnt bring up any codes off my engine because my check engine light is broken... but im not convinced that they even will bring up any codes when it gets fixed.... so any suggestions to what it might be would be greatly appreciated!

 

i have a feeling it could be the eacv... but i have no way of knowing any suggestions?