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Fuel Pressure gauge pegged?

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Old Mar 31, 2014, 07:08 PM
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Fuel Pressure gauge pegged?
I have a prosport fuel pressure gauge and it read fine at idle then I did a WOT pull and it pegged at 100psi? This is the 2nd time. All wires are hooked up correctly... Any ideas? Thanks
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Old Mar 31, 2014, 07:12 PM
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What's the pressure at idle and how much boost are u running?
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Old Mar 31, 2014, 07:14 PM
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hair under 40psi at idle, boost is around 28psi...
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Old Mar 31, 2014, 07:53 PM
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Are you on the stock fpr? any mods on the car? and when did you start noticing this issue?
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Old Mar 31, 2014, 08:15 PM
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Yes stock FPR, double pumper, fic 1450's. I noticed it when I installed a FP gauge a cpl weeks ago. Did a pull, it pegged so I replaced the sender, and it did it again today and idk why.
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Old Apr 1, 2014, 02:28 PM
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sounds like you are over running the stock FPR. I know on DSMs anything above a 255lph, usually (not always) will make you overrun the stock FPR. I have read Evo's have a better FPR from the factory but maybe you have too much fuel for it.
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Old Apr 1, 2014, 03:06 PM
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I was working before the WOT pull, If it was overrunning it, it would have been from the start.
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