eL

Ok, before i ask about my problem, I searched and found too much crap that didnt help plus i didnt feel like looking through 3 pages of stuff.

Ok, heres the problem. My b16a2 only idles as low as 1k. It also climbs up to 1500rpm then drops back down.

Ok, i know the first thing people say is "check for vacuum leaks" or "IAVC" well, that honestly means nothing to me. I need specific details! Someone help me. Going from 1000rpm to 1500rpm is so damn annoying... especially when my idle should be a lot lower.

Blue-Civic-Hybrid

iTrader: (1)

Check under your throttle body for something called your Fast Idle Thermal Valve... FITV...I had this exact same problem on my B18C1 and this valve fixed my problem.

If you have a Helms, you should be able to find it, has a coolant line going to it.

Hope this helps..

eL

Any pix or anything to help a n00b find his way around the tb?

JDMlyfestyle

I dont have a FITV on my B16a2? :/

eL

Hmm, I hope I have one, SOMEONE HELP ME!

otakueric

i have same problem as yours, search for my thread, and even watch my clip

i replaced the iacv AND the fast idle
and still same problem
leads me to believe its injectors or a fuel pump...

JDM*BUBBLE

I had the same problem
there was a vaccum line not connected on the bottom of the intake maifold around where the Throttle body is

EE_Chris

A) Your B16A2 does not have a FITV, don't bother looking for it.

B) When you've got the high idle, unplug your IACV: What happens to the idle?

Have you messed with either of the throttle body screws (idle air bypass or the throttle blade stop)?

eL

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EE_Chris &raquo;</TD></TR><TR><TD CLASS="quote">A) Your B16A2 does not have a FITV, don't bother looking for it.

B) When you've got the high idle, unplug your IACV: What happens to the idle?

Have you messed with either of the throttle body screws (idle air bypass or the throttle blade stop)?</TD></TR></TABLE>


I need to know what the IACV looks like

deSigi

This picture is off of a D-series engine, but it should be similar.



Hope it helps.

eL

Thanks for the picture... now what should I do?

deSigi

Unplug the IACV connection and tell us what happens.

743

Read through this thread, good info.
https://honda-tech.com/zerothread?id=741561

99blusi

I'm having the same issues on my 99 Si...I just did an OBD1 conversion and intstalled an AEBS intake manifold. It worked perfectly fine before...now it's going ape **** sometimes...and working normally sometimes. Now, when I unplug the IACV, it idles fine...what does this mean???

deSigi

When your IACV is connected, you get an erratic idle and when it's disconnected, your idle is ok?

99blusi

Right...

turbo_ef9

there is also a lil umm.. i dunno what valve it is but, u can take it apart and screw it tight.. hard to explain. i should do a write up on it later when i get the chance to... doing this, alot of times cures the irratic idle..

deSigi

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 99blusi &raquo;</TD></TR><TR><TD CLASS="quote">Right...</TD></TR></TABLE>

I could be wrong, but I would assume that there is a malfunction in the IACV.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eli_vang &raquo;</TD></TR><TR><TD CLASS="quote">there is also a lil umm.. i dunno what valve it is but, u can take it apart and screw it tight.. hard to explain. i should do a write up on it later when i get the chance to... doing this, alot of times cures the irratic idle..</TD></TR></TABLE>

Do you mean the Fast Idle Thermo Valve?

Combustion Contraption

i bet he means the idle air adjustment screw...which would not remedy this prodlem.

turbo_ef9

no i dont mean the idle screw.. i think it's the fast idle.. it has antifreeze running through it.. anyawys.. i'll get pics..

Phastnphun

I've got the same prob. as eL so thanks Ill unplug IACV and if that dont workie I try back.........

eL

my car's currently being painted so I cant try anything on it but i do have another question... could it be my chipped p28 causing the idle?