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Old 07-17-2008, 10:46 AM   #10
Scooby Specialist
Member#: 84482
Join Date: Apr 2005
Chapter/Region: Tri-State
Location: PA / Element Tuning
2005 STI.UR gt4088r
E85 pro comp sti


^^^yeah its a high pressure fuel injection hose


well i took out the FPR and took it apart and the disk inside the FPR was loose so i tighten it and put it back together and now the fuel pressure is 38psi at idle no longer 84-88psi

well i went and drove it around and the car was jerky and breaking up under i turned around right away and pulled the car into the garage...i think maybe now it is too tight and pressure is too low...what a simple thing to throw off the entire car....i really don't know the dynamics of the inside of a FPR so i didn't know how loose or how tight the disk inside there should break it down real quick...the left side has a spring with a disk on either side then theres a gasket that separtes the left from the right and the other side has a disk that looks like a silver dollar with four or five holes in it and then the other side of the disk has a nippe with threads on it to screw it into the FPR which leads to the fuel return line i when putting it back together i didn't know how tight to put it, when i first opened up the FPR the disk was loose you could wabble it from side to side almost, thats how loose it was, there was only a few threads of a the nippple holding it on

anyone with experience taking apart a FPR that looks like this one

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