my d16y8 has idle problems

[ivtecDOyou]

sometimes it idles perfect and other times it will go to 500 or lower and other times the gauge will say zero but it dosent die. it also bubbles alittle when idleing. i know its not fuel injectors. as far as the bubbling goes. i need to find the problem.

 

[got traction]

set up?

 

[RonJ]

Any CEL codes?

Have you cleaned the IACV or bled the cooling system?

 

[luv4honda]

This ^^