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#1
05-30-2012, 03:19 PM
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Fuel pressure reg or transfer pump? Lbz
Hey guys I getting the low rail pres code and was wondering if it woul be my fuel pres regulator or my transfer pump? It runs awlful and surges and is going in limp mode often. I have an 06 lbz with 215k thanks
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#2
05-30-2012, 03:23 PM
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check your injector pump also!
__________________
MONSTER MAXX (James) 2002 LB7 (170,000) EFI Live Toman Special 5" Single stack Exaust 3" turbo direct Drivers side lml manifold Air Dog II 165 Big Dipper Stage IV Trans/ ML converter Trans case brace,pump rub kit Cognito braces,and tie rod sleeves Banks big Head /PPE boost valve Auto meter Phantom Guages Pyro,Fuel,Boost Intake horn mod,fprv mod,lbz fpr mbrp hot side 3" ic pipe H2's wrapped with 285/70/17 mastercraft courser at's 480rwhp/858tq 05/26/12 Stock turbo & sticks 540rwhp/1022tq 08/8/12 A SPECIAL THANKS TO: Chris R,JustinD,JayF,Chachee,Jeremy holmes,Cody B,Derek B,Toman,George aka Big Dipper,&everyone else who got their hands dirty to get the truck to the level it is at! 
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#3
05-31-2012, 10:50 AM
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I may do that. Ok it was idling in the driveway last night an all a sudden it was like you tapped the pedel and out came a smsll puff of black smoke? And if it's parked for an hour or so I will have to pump the fuel filter primer in order to get it to start? I am gettin a p0088 high fuel rail pressure code and all this time I thought it was a low rail pres code! Does this sound like a fuel regulator? And what would cause it to have to be pump the filter primer to start? It leaks a little fuel around the water sensor draincock "sometimes" not always. Could it be duckin air causing it to run so bad? This thing is weak as water at certain rpms and limps often. Help please thanks
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#4
05-31-2012, 01:31 PM
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So the fuel filter is leaking?any fuel leak would cause it to lose prim maybe the filter head needs to be rebuilt .orings etc...
__________________
MONSTER MAXX (James) 2002 LB7 (170,000) EFI Live Toman Special 5" Single stack Exaust 3" turbo direct Drivers side lml manifold Air Dog II 165 Big Dipper Stage IV Trans/ ML converter Trans case brace,pump rub kit Cognito braces,and tie rod sleeves Banks big Head /PPE boost valve Auto meter Phantom Guages Pyro,Fuel,Boost Intake horn mod,fprv mod,lbz fpr mbrp hot side 3" ic pipe H2's wrapped with 285/70/17 mastercraft courser at's 480rwhp/858tq 05/26/12 Stock turbo & sticks 540rwhp/1022tq 08/8/12 A SPECIAL THANKS TO: Chris R,JustinD,JayF,Chachee,Jeremy holmes,Cody B,Derek B,Toman,George aka Big Dipper,&everyone else who got their hands dirty to get the truck to the level it is at!
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#5
05-31-2012, 07:21 PM
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Yeah just a little but not always. What would cause it to have too much rail pressure? Rail pres sensor maybe? Or fpr?
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#6
06-07-2012, 04:25 PM
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Has any one got any tip's on how to Change fuel presure regulator 2001 duramax
Jwillis71
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