747 crossfire conversion question.

[rr]

The D14/C15 & D15/D16 seems to be done to lower the
wire resistance to the injectors. With two wires making the
run from the ecm to the injectors, the injectors may respond
a tad quicker. The 5.7 & 7.4's are also running larger injectors,
may also play a part. (I also did this when I wired up the '67,
figured that it could only help).

The A11/D2 map one I have no idea about. I pondered it a
while back, stopped when the brain had enough. . . and
stayed with how the harness was originally.

BobR.

Bruce Plecan wrote:

> 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
>

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