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Old 12-21-2013, 12:11 AM   #1
Scooby Newbie
Member#: 375748
Join Date: Dec 2013
Location: 27PSI
04 STi

Default Walbro 255L, Fuel Pressure SOLVED!

EJ207 JDM/AUS, 04 STi / FPRed @21 PSI / 90% IDC / DW1000cc / 55ft / 83mm MAF /3in inltet / walbro 255 / rails etc...

Ive been trying to figure out what is happening with the fuel press. There is no leaks anywhere i have triple checked.

What happens is, start the car ,255l walbro primes / cold start = 3.2bar (46PSI) / Warm idle = 2.7bar (39PSI) / WOT = 3.8bar (55PSI) i know these are all lower than normal but am stumped why?

Fuel Pressure SOLVED! see post #9

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Last edited by 1MOFOSTI; 12-29-2013 at 12:08 AM.
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