FASS DDRP Pressure Questions
#1
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Location: Chillicothe, Texas
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FASS DDRP Pressure Questions
Just put new VP44 on and Replaced walbro lift pump with a Fass DDRP along with new inline filter. At first the pressure was bouncing between 9-12 at idle and down to 4 or 5 at WOT. At first I thought maybe the tank had crap in it so I Put a new inline filter on and just sucked out of a bucket of clean fuel and the pressure at idle is 10 and WOT 6. I just figured the FASS would put out more pressure than that. Any thoughts? Im also throwing codes 1388, 0230, 0122, 1693, 1492. Thanks
#2
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I have the Fass DDRP pump on my truck and the pressures are 22-24 at idle, 15-18 going down the road, and never under 10 at WOT. I have had mine for 3 or 4 years and has been constant on the pressures. If I am not mistaken there is a way to change the pressure but I do not remember how.
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