Injectors & harness

[thergen at svn.net]

My '92 6 cyl vortec 4.3 (vin W) has a single CPI injector (Central Port
Injector as describe in the factory service manual).  It is a single
injector with six flexible tubes coming off and special nozzles at the end
that maintain pressure in in the tubes when the injector not flowing.  The
nozzles have plastic clips that hold them into holes at the end of each
intake runner.

I thought the Syclone (vin Z?) actually had 6 injectors. 

Anyways, the CPI does inject at the port, but I haven't heard it called a
TPI injector. 

Tom

On Mon, 3 May 1999, Bruce Plecan wrote:

> 
> ----- Original Message -----
> From: Shannen Durphey <shannen at grolen.com>
> To: <diy_efi at efi332.eng.ohio-state.edu>
> Sent: Monday, May 03, 1999 10:02 PM
> Subject: Re: Injectors & harness
> 
> The injectors I just bought out of a sy really look like the ones I put in
> the Buick GN fuel rails.
> Bruce
> 
> > Wait, there's a catch.  If this has the same injector as used in the
> > later 4.3l Vortech engine, it's got a different connector.
> > Barry, if the injector looks like a bug and is buried in the center of
> > a large, 2 piece manifold  you can find similar parts in Astrovans and
> > S-10s with the VIN W engine.
> > Shannen
> >
> > Bruce Plecan wrote:
> > >
> > > All GM TPI injectors use the same connector, as well as most ford.
> > > Pep boys might even have them.
> > > True Value does, but I don't have the number
> > > Bruce
> > >
> > > > I'm looking for a couple of injectors & connectors from a Syclone ('91
> GMC
> > > port injected 4.3) for setting up a test rig.  Does any other vehicle
> use
> > > these port injectors & matching connectors?  I'm not likely to find a
> > > Syclone or Typhoon @ my local wrecking yard.......
> > > > Thanks - Barry
> >
>