Quote:
Originally Posted by Old Mechanic
I may have replaced 1000 regulators over the last 30 years. Nissan started using them in the Z cars in 1975, the first year they were fuel injected.
regards
Mech
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And I own and modify that same Z car. And I can say with 100% certainty this very common fuel system
maintains a constant fuel pressure across the injector. So a duty cycle of x% represents the same fuel flow at a particular rpm regardless of engine load.
Reference your fuel pressure gauge to the manifold and you will see what I mean.