L5P injectors require back pressure to operate?

Ron Nielson

Active member
Oct 11, 2009
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Berryton, KS
For LML injectors:
The injectors require a minimum of 3 BAR (45 psi) of pressure in the return system. Pressure is maintained via a “Constant Pressure Regulator” at 4-11 BAR (58-160 PSI).

Is the same true for L5P injectors?