Compression Ignition Addict
Join Date: Jul 2010
Location: Falls Chruch
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Fuel pressure too high after FRX install
My tests are at idle...
I cannot seem to get my fuel pressure below 66 psi after the frx install. I have tried all springs, to include the stock spring from the factory. I can go higher, into the 70s (black spring) and the stock spring brought me back into the upper 60s. I'm currently running the gold spring which is hitting 72 psi at idle.
I'd like to get the fuel pressure down to ~60psi
Nonconformist. Functionality over bling.
My three rules for 7.3l troubleshooting: 1) Replace CPS and keep a spare. 2) Replace FPR and know your fuel pressure. 3) Hook it to a scanner and check for codes.