ok i have had this for a while but it usually fixxed itself after 2-3 red lights
now it is consistant when i am in gear and i take it into neutral the idle goes too 400-600 regular was around 1-1.2k does anyone know why this is happening or have any experience or know how too fix this problem please let me know
it is on a d16 engine!

 

most likely its the idle control sensor it happen to me as well i have a d16 too or try adjusting the screw thats near the throttle

 

alright i will check it out