fuel pressure readings


abunai888

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Joined
Mar 12, 2009
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1,954
hey guys i have a question so long story short.
installed a B&M fuel pressure gauge when i was using oem fuel pump
i noticed that fuel pressure was dropping down to 0 after 3-4 hours car was sitting in the garage.
since i was prepping the car for the tuner i installed a walbro 190lph fuel pump (planing to use rdx 410cc injectors too)
and noticed that fuel pressure is staying at ~45psi all the time
i checked the gauge releasing the fuel pressure and it drops down to 0
is that normal or my fpr is going bad or something ?
 
Sounds odd that it has changed since you fitted a Walbro pump. I have never seen a OEM regulator to fail so I wouldn't be inclined to think it is faulty. Once it holds pressure ok when running then you have nothing to worry about.
 
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