28-29,000 PSI... The mini maxx uses KPSI or KSI (can't remember) and for every one of those units it is 1000psi. at an Idle my truck sits at 3.8-4.0 or 3800-4000 psi of pressure...
Thats why you need to be super careful around HP fuel rails!!! Alot of newer engines also hold rail pressure once the engines shut down, theres special procedures to bleed off pressure to work on the fuel systems.
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