hi, i have a erratic rpm problem, it is not stable at idle. It goes up and down between 2000-2500 rpm's.

it was fine before, but then due to some problem with the car, it was grounded for over 3 months, after that i took it out for tuning and when i went WOT, this started to happen, or it is because i took off my electronic boost controller off because of it not working and i deleted the vacume line which goes into the EBC.

now what can cause it to idle like this? i have a video too, please watch it.

 

boost leak?

 

did a boostleak test, problem still remains.

 

Did you try unhooking the socket for the idle servo motor, to see what happened?

 

Closing this

Duplicate thread here with solution (IACV was bad)

https://www.evolutionm.net/forums/ev...elp-video.html