what makes the multi-fuel injection match the points of the firing order to
multi-fuel injection. what controls it. are they relays? or are they
capacitors? or both? If so where are they located. please help, thanks for your
The early V8 EFI did not inject with the firing order, per se. There are four
sets of trigger
points in the base of the distributor that send a signal to the ECU to fire off
the injectors in
pairs. 1 + 5, 2 + 7, 3 + 6, 4 + 8. With the distributor stabbed correctly and
firing #1 plug at the
index point, each cylinder gets 1/2 its gas charge on each revolution of the
crank. The second half
of the fuel charge comes just before the intake opens. [the crank makes 2
revolutions for each
intake valve opening]
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