DFCO, What is it good for?

[Shannen Durphey]

Not quite the same situation, then.  Thanks.
Shannen

Mark Romans wrote:
> 
> Yes, the injectors went to zero pulse width because the engine thought it
> was in decel.  A hair more throttle and it was smooth.  Less than 3%
> throttle is the enable % and more than 3%, no DFCO.
> Mark
> -----Original Message-----
> From: Shannen Durphey <shannen at grolen.com>
> To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
> Date: Saturday, March 20, 1999 11:04 PM
> Subject: Re: DFCO, What is it good for?
> 
> >Mark Romans wrote:
> >>
> >> 4) DFCO,  it would stay enabled to too low an rpm.  Stall.  Also with
> 11.1
> >> to 1 compression the load values changed and at less than 3% throttle at
> say
> >> 25 mph around town in 2nd gear, at a steady state rate of speed,  DFCO
> would
> >> suddenly decide to kick in.  JERK JERK.
> >> Had to lower the enable value.  Also had to lower the resume.
> (Hysterisis
> >> pair).
> > Sounds like symptoms I ran into once.  Never cured it, and haven't
> >been in a position to try, but still wonder.
> >
> >Was this jerking pretty violent, say like shutting key off, turning
> >key on?  If you increased the throttle opening while it was happening,
> >did the symptoms dissappear?
> >Shannen
> >