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fuel pressure too high with inline pump?

  • Thread starter Thread starter gt347mustang
  • Start date Start date Aug 13, 2004
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gt347mustang

New Member
Apr 14, 2004
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denver
Aug 13, 2004
#1
  • Aug 13, 2004
  • #1
I just installed a new procharger d1sc and new 255lph inline pump. My problem is that when im at idle I have about 60psi of pressure but when I get on the throttle the pressure drops back to about 40 (stock, i think) until the fmu kicks in. I tried unpluging the pump and the pressure goes back down to 40psi at idle. Has this happened to anybody else? Did i plug it in right? also I have a stock fuel pressure regulator.
 

QDRHRSE

New Member
Dec 31, 2002
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0
Palmdale, CA
Aug 13, 2004
#2
  • Aug 13, 2004
  • #2
You better get an adjustable regulator. The stock one is pretty lean 36-38lbs. It shouldn't do what its doing- not working properly.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Aug 14, 2004
#3
  • Aug 14, 2004
  • #3
i dont know snot about the Blowers, FMU, timing retard units, etc. but i agree that an adj FPR would be a good idea.

i must be missing something - you could have a 1000LPH pump, and if the reg works, it will stay at whatever pressure you set it at. weird. good luck.
 
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