r.etheridge

So I have yet another problem with my D15B8 engine in this coupe. The idle is fine while the car is in drive and my foot is on the brake but when the car is in park, it drops and goes back to normal idle, like a bouncing effect but will stop when put back into drive. Im thinking it may be a sensor but I have no check engine light on so im not sure. what do you guys think?

hondaboy9506

this is just a guess but sounds like its the iacv valve location back of the intake mani

r.etheridge

thats what someone else said on another forum. im gonig to take it off and clean it up really good and see if that fixes the problem. thanks for your help

94ej2z6

most likely it is the iac valve if it is you should hear it opening and closing repeatedly mine does the same same thing i have a d16z6 with a skunk2 intake manifold and it does this on cold starts and randomly when at a stop after warmed up. check the iac valve if its not that make sure the throttle cable is not caught up on anything or making any bends that it shouldnt.

r.etheridge

I found it but its called a eacv on this D15B8. Thas the same thing right?

r.etheridge

i cleaned out the eacv and it seems to be running ok now, ill know better tomorrow after my 15 min. drive to work. while doing so i also noticed that my purge cut solenoid valve ( sits on the back right corner of the manifold on the driver side) was broke. I searched on this forum and found that you really dont need it and can bypass it. is this true or should i suck it up and get a new one? they are kinda pricey so if I can get by without it, that would be great.

JDMpride

check my thread, that used to happen to my ferio....so i clean the FITV and the IACV and the problem is gone .
i hope it helps
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/rpm-goes-up-down-only-when-egine-cold-2843985/

r.etheridge

awesome link bro, thanks! ill clean it out this weekend when I have time thanks again!

JDMpride

do it soon bc u can choke ur motor....and is gonna start shutting off

JDMpride

this is how u clean ur iacv
http://www.youtube.com/watch?v=tUkCC...eature=channel

JDMpride

and this is for the fitv
http://www.youtube.com/watch?v=2n8KZ...layer_embedded

r.etheridge

yeah its been getting worse and worse so i will probably do it today. Thaks for the vids man