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 time.
73 mercedes 450sl
Nov 29, 2003
2 Replies
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]
enjoyed reading this now that's a knowledge based answer thank u
"Karl" schrieb im Newsbeitrag news:9jcyb.32442$ snipped-for-privacy@newssvr32.news.prodigy.com...
four sets of trigger
fire off the injectors in
and firing #1 plug at the
the crank. The second half
revolutions for each
Join the Discussion
Have something to add? Share your thoughts — no account required.
Didn't find your answer?
Ask the community — no account required