EFI GM Diesel (was AFM measurement/backpressure (was Turbo speed sensor))

[Shannen Durphey]

All PCM controlled, yes.  Done in the injection pump, so some serious
changes would be in order to run 6 cyl. Can't find the books I had,
but something about a stepper motor controlled disc that rotated to
change fuel volume and timing.  Optical crank sensor in the pump was a
common failure in the early days.  Wastegate operated off vacuum pump,
pwm solenoid.  
Shannen

nacelp wrote:
> 
> The little time I had under a late diesel hood struck me as 8 cylinder
> specific.
> The 436 is a straight six.  Is the later stuff all PCM contolled for
> injector timing?.
> Grumpy
> 
> > You've looked into the 95+ 6.5 hardware?  Fly by wire efi, boost
> > control via PWM output, variable pump timing and duration...   You
> > supply the machinist.
> > Shannen
> >
> > nacelp wrote:
> >
> > >
> > > > BTW--Bruce--have the little guys ever come across a DT-573??
> Apparently
> > > > it's  a V-8 version of their little 430 toy!!
> > >
> > > Ughhh???.   Man that sounds like fun.
> > > Just gotta work out a 8253 to fine tune the injector timing, and get
> away
> > > from that mechanical pump, and go EFI.
> > > grumpy
> > > >
> > > > Greg
> > > > >
> > > > >
> > > > >
> > > >
> > >
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