I have a 1st gen b16 in my crx and when at idle it idled really low 400 maybe and then after a bit it would just shut down. At times it would idle right and then sometimes high again. When I drove around the battery light would just shoot on whenever i was in neutral and the car would shut down and then id have to start it up again and it would be fine if it was in gear. I picked up a new battery and the car doesnt shut down while in neutral anymore and i adjusted the screw on the manifold so it idles better but i'm still idling at 1 and sometimes 1.5. I've checked the vacuum hoses and the only code im getting is a 23 for the knock sensor. I really dont know what is causing it to idle funny can anyone help???!!