Re: 747 crossfire conversion question.

["Bruce Plecan" <nacelp@bright.net>]

Ok brain fade
Why do they tie D14 to C15, and D15 to D16 on the 5.7s and 7.4s?.
EAD soleniod?
Did the pickups run a smog pump?
EVRV, early vapor recovery valve?, charcoal canister?
What's the deal with A11 and D2 for the MAP ground?.

Dual injector, TBI firing strategy normally fires the injectors alternately
on every ign pulse.  This changes in different modes of operation, thou..

Grumpy



> > OK, I've had the 747 in the car for a while and everything seems to be
> > working. I haven't had anytime lately to mess with it, but then I get
sent
> > to me the pinouts TC uses for their xfire conversion to "90s computer"
and
> > notice that D14 and D16 are exact opposite of mine. I used pinout sheets
for
> > the stock Xfire and 747 to match everything up, but connected the
injectors
> > the way I did based on the wire colors. So what I have is D14 for the
front
> > injector and D16 as the rear. I guess the question is do I have it right
> yes
> or
> > do they,
> yes
> and does it matter?
> no.
> What effect will it have if I'm firing each set
> > of runners off by a few ms?
> They're not firing "off", because they were never synched to fire
> "on".  They just shoot fuel.  Try snapping the tps a couple of times
> and watch what happens to the injector pulses.
> Shannen


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