having some idle problems...

[95GSRB18C]

Ok... i got a 95 GSR and recently i just put the B16A2 head on there with the first gen manifold. I am having some idle problems. First it was the idle was jumping from almost dying to about 2K RPM every second and i think it might have had some wires mismatched. Now when i start the car, the engine wants to rev to knows what ( i shut it off because i dont want it revving that high). Its almost as if i have my foot to the floor but i dont. I know the accelerator cable isnt causing the problem either. Im thinking its within vacuum lines or wires. Anyone ever had this problem or could maybe take the time to help me out with this?

Thanks
Bryan

[AJAX@TurnFive]

Intake leaks on the manifold after the throttle body, is the throttle body closing all the way?

Mike

[95GSRB18C]

yea thats what im thinking. Ive just been working on this so hard to get it to run and it wont. Im just takin my time to get it running because if i rush, i will just piss myself off more.

[95GSRB18C]

anyone? i need some help quick!

[prkrnt]

Originally posted by 95GSRB18C
anyone? i need some help quick!

Sorry bro...but you know my skillz ain't up to par with yours...wish I could though.

[95GSRB18C]

its ok, thanks for the thought tho. :)

[Mr. NoSkills]

posted this on crn also so...
i'm fuckin half awake so if there's any wrong info you can kiss my ass :)

IACV should just get a coolent feed and return line as far as i know.

what ecu are you using? still stock gsr? i don't think it would cause the vtec solenoid code but it probably doesn't help if it's looking for the IAB(s) and they're not there.
but shit man, so many things could be doing this. you said your using a 1st gen manifold right? do you have a vacum line hooked up to the little dashpot on the intake manifold (if it has one,some don't). if you have the wrong one hooked up to it it'll make the idle climb like mad. was the head resurfaced before installed?
bleed the coolent? etc...
fucking start the car, warm it up till the fan comes on then unlpug the IACV, see what that does.

[95GSRB18C]

i tried starting it but it does run for more than like 10 seconds and then it dies. It seems to run better with it disconnected tho. I am just totally lost on this whole thing and i really have no idea what to do.
thanks for the help.

-Bryan

[mrmotorsports]

My 95 GSR was acting up the same way. Idle surge from 1K to 2.5K. After checking every sensor I went searching the forums. Alot of people bypass the coolant on the IAC and Cold start valve. So I looked there found that my cold start valve was staying open all the time. The white plastic adjuster screw backed out and was allowing air to enter the engine. Added locktite and rethreaded (while warm) until the valve just closed. Problem fixed. May not work for all but worked for me.

[95GSRB18C]

ok, but please dont bring up old posts....especially from 2 months ago.

Thanks

[hsunchen]

ok, but please dont bring up old posts....especially from 2 months ago.

Thanks

So did you get it fixed then? If so, how? I'd like to know - I'm trying to solve a hunting up and down idle problem on my D16A6/Y8 hybrid engine I just put in. I have a B-series T-body on the Y8 Civic manifold. Everything is hooked up (MAP, TPS, IAC, EACV) - no check engine lights. I've searched tons of websites and threads on this and four days later I still haven't figured it out yet.

In my case, the idle goes up and down only after the engine is fully warmed up - before that it idles too high (between 2500-1700 rpm).

I've adjusted the TPS to .46V when closed, checked the throttle cable, checked the FIV to make sure it's not leaking, rebled the coolant, and looked for vacuum leaks. If I unplug the EACV it will idle lower, and I turned the idle set screw all the way in, but it still hunts up and down. I guess the next step would be to take the EACV off the manifold and clean it/check the impedance - it's supposed to be between 8-15 ohms.