2012 Isx 2350 475 with codes 4726 and 0559

[ahrenbenjudah]

(02-16-2022 )Rawze Wrote:  will it pass a fuel rail leak test?

http://rawze.com/forums/showthread.php?t...2#pid69262

It only cranks so I can’t do a rail leakdown test unfortunately. If I key on, the rail is fluctuating between -50 and -10 psi. That’s with a new pressure sensor installed and a new relief valve installed.