i put my fass 95 gpm lift pump and i ran great for a little bit..and then didnt feel right... finally i did some testing hard testing with my edge on 100hp and the low fuel rail pressure came on so i dont know what tha hell happn or if there is any waqy to turn the lift pump up or not plz help.!!!!!!!!
__________________ ....06 CC LB 4x4 LT....PPE HOT2--PPE JR. SHIFT KIT---ATS TC---5INCH STRIAGHT PIPE FROM MBRP---AFE STAGE2---TTS DUAL LIFT PUMPS
i believe the pump is a adjustable pump..may want to call Fass for more info.
__________________ James
05 LLY Chevy LS E/C L/B DRW my older brothers truck now
2006 LBZ GMC SLE C/C S/B,sold the truck to my dad for a business truck
My Truck now,1987 Chevy 2500 350 tweaked,6" SuperLift,350 V8 bored 60 over,Elderbrock headers Cam and Titanium Rockers,750 Twin Pumped Holley Carb and some other goodies.crank dynos over 400HP.
2001 - 2006 GM Duramax LB7 and LLY The stock GM Duramax fuel pickup line I.D. is 0.240" while all the fuel line and connectors are 0.500" I.D. As a result of this restriction in the fuel tank the pump has to work harder in order to retrieve the fuel thereby starving the engine of usable power. TTS has developed a fuel pickup system upgrade for the GM Duramax where the fuel pickup line is 0.500" I.D. Made of 6061 billet aluminum that replaces the stock plastic restrictive pickup, and machined to accept a 5/8 hose to increase the fuel flow by over 140%.
__________________ 2008 SILVERADO 2500 HD CREW CAB
LTZ Z71 SWB LMM/ALLY 6 Sp Line-X Bed. CHROME BUG DEFLECTER,WINDOW VENTS,DOOR & TAIL GATE HANDLES,HOOD VENTS,MIRROR COVERS,STEP TUBES BOX RAILS B&W HIDEAWAY HITCH WITH COMPANION 5TH WHEEL, FENDER FLARES ,BACK WHEEL HOUSE LINERS, AMARICAN RACING WHEELS WITH WRANGLER S/A TIRES LT275/70/R17 (NOW ITS TIME TO ADD MODS )
All stock at this time
05 D/ZF Reg. Cab
PPE GT 4094r, ATS CP3X2, Best ET-12.53@ 109MPH 5/08
Stock Turbo, ATS CP3X2, Best ET -12.91@ 106MPH 10/08
Under the knife to attach a second turbo 04.5 D/A CC/SB- SCIV w ATS 5star converter,Mike L cooler
Stock Turbo Best ET 13.53 @ 103Mph @ 7300lbs
Waiting install of GT4094R
Sounds like you may be needing a draw straw. Like posted, the pickup is not so great. Really, we need to check pressure at the CP3 first, and troubleshoot from there. Could be a couple of things, if not the FASS. The FCA on the CP3 could fail, the RPV (Rail Pressure Relief Valve) maybe opening, or an injector could even be hanging up.
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