[DMCForum] Aux Air Valve
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[DMCForum] Aux Air Valve



Remember the gizmo on my car for fast idle? That's an axuiliary air
valve. Is not part of original DeLo design, but since I'm running a
manual idle speed circuit I need one. Was very common on all other
fuel injected vehicles of that vintage. Mine came from a BMW.

Small photo's in #5939's photo album on DMCNEWS group.

Is just a solenoid or coil operated valve, much like a heater core
shutoff valve. When open, additional air is allowed to bypass throttle
plates, increasing idle speed. I take off from a 3/8" nipple added
just after air sensor plate (before throttle plates), then re-enter
intake at unused nipple on driver intake rail (my R30 doesn't use
stock DeLo vacuum system).

Bill Robertson
#5939

>--- In DMCForum@xxxxxxxxxxxxxxx, "cruznmd" <racuti1@xxxx> wrote:
> On occasion, I have heard reference made to an "auxiliary air valve".
> 
> As far apart as I have had my engine, I can't believe I haven't seen 
> this thing, nor can I find it in any parts lists.
> 
> I have finally seen one on Ebay for sale, (looks new too). This thing 
> doesn't look familiar to me. It looks like it has an electrical plug 
> on the end as well but I'm not sure.
> 
> I must be stupid or something. Can someone please tell me WHERE on 
> the engine this thing goes, what it does, what symptoms it causes if 
> it fails, where to get one, and a part number???
> 
> Humbly yours,
> 
> Rich
> #5335



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