I am planning on doing the FPR Shim this coming weekend, I went to the parts store today to look for a Fuel Pressure Gauge. I didn't see one, can I use an Oil Pressure gauge, that reads up to 100PSI? Thanks Kyle
You really want to do it right if your going to place it in the cab... Get a electric gauge... You can use a oil pressure gauge, but the senders dont last sometimes... Some do some dont? But Dont plumb 70psi diesel fuel into the cab...
Diesel innovations has a little $9 cap with a 1/8 pipe port. I plumbed a adj. reg and gauge off the cap. You can play with your fuel pressure with ease. This cap replaces the factory reg. I used parker 601 hose, rated to 1250 psi.