whats the difference if any between lly and lbz fuel rails? and if there is a difference can lbz rails be used on a lly?
No, you have to have a pressure sensor somewhere in the system.
Not to HighJack but what about Lb7 to LLY rails?
Reason I ask is I RacePlugged mine but now am throwing low RP code again
Bottle test. And if it's a lb7 check the distribution block in the middle. Isn't there a fprv on that block on a 7???