2005 Mustang GT Erratic fuel pressure - Ford Mustang Forum
 
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post #1 of 3 (permalink) Old 03-08-2010 Thread Starter
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2005 Mustang GT Erratic fuel pressure

I have a 2005 mustang gt 4.6L it has a turbonetics turbo kit on it. the fuel presure gage bounces around like crazy, it was ok and then one day it went nuts, I tried a mechanical fp gage and the fuel presure is really jumping around, i replace the fuel pump driver module and same thing? if i unplug the fuel rail presure sensor no change? the pump is stock and the fuel presure jumps around at idle and while driving?

Mark

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post #2 of 3 (permalink) Old 03-08-2010
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your pump might be broken....
why are you using a stock fuel pump with F/I?
Replace it with an upgraded one, or a cheap stocker and patch it with a KB BAP

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post #3 of 3 (permalink) Old 03-08-2010
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Do you have GT500 pumps? If so look at the current thread in this section about the wiring be backwards.

2005 Ford Mustang GT Torch Red Manual
Saleen Super Shaker 3.4 pulley/Brenspeed Tune
Kooks Longtubes Catted H/FRPP Stingers
Full BMR And Steeda Suspension
FRPP Throttlebody
Dynotech Driveshaft
SOLD!! I have no Mustang at this time!
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