i put a skunk 2 mani on my 2000 si, when i start it up it idles at 2 and then when it warms up it starts constantly reving up and down at idle i was gettin a check engine then i put in a type r ecu and it was ok and then later on when i started it again it the check engine came on and and it started sputterin and no throttle response my friend switched 2 vacuum lines and the sputterin stopped and the check engine went away but it still revs up and down when the check engine light was on my friend got a code 14 electronic air something? im not too sure what he said but if anyone has any idea what is going on thats messing up my idle PLEASE let me know ASAP i have no car!!

 

IACV, check for proper seal

 

yeah try cleaning out the IAC valve and then reset the ecu by pulling the back up fuse in the fuse box under the hood