PCV valve for TPI

[Bruce Plecan]

> How are you trying to adjust your idle?  What all have you checked?  I can
> go pull off my PCV valve in the morning and see if it raises the rpm's at
> all.  Mostly me forgetting to hook back up the brake booster is what cause
> my rpm's to go crazy at idle.  I think basically all PCV's are created
equal
> except the shells vary slightly.

Nope,  (ignoring packaging)
the weight of the slug, and size of the restriction orfice vary
Bruce



  If you pull out the PCV and stick your
> finger on the bottom with the engine running and it clicks it basically is
> working right.  Also me idle sits kinda high when I first start the car.
>
> Also take a look at http://www.thirdgen.org/newdesign/tech/tpimod2.shtml
and
> see if that helps.
>
> Dan
>
> From: <WEG1192 at aol.com>
> To: <gmecm at diy-efi.org>
> Sent: Sunday, October 01, 2000 10:25 PM
> Subject: Re: PCV valve for TPI
>
>
> > I am having a problem getting my idle speed to drop low enough to
approach
> > the desired idle RPM as shown on my scantool. The IAC motor shows 0, and
I
> > have a 4000 ppm speed sensor hooked up and it appears to be accurate.
The
> > only way I can get the idle speed to drop from 900 to 700 RPM where I
want
> it
> > is to pinch off the PCV valve line. Are the TPI PCV valves anything
> special?
> > Are they smaller orifices that won't let as much air through? Thanks.
>
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