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07-24-2010, 06:42 PM
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Been here a while!
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Join Date: Jul 2009
Posts: 36
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having some issues
hey all. i have a 2001 chevy 2500hd thats having some issues only while towing. i tow a boat that is approximetly 10,000lbs. when driving down the road with the trailer the truck will go into limp modeand through a P0093 code i gather its a large fuel leak thats what the scanner says. what are the possiblities and what are ways to diagnose it? thank you
Mike
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2005 Chevy 2500HD Duramax LLY, MBRP ram air intake w/super scoop, Banks 4" exhaust, CAT DELETE and NO MUFFLER, EGR blocker plate & fingerstick, Fisher SS ExtremeV plow, Auto Meter Gauges, Boost, Pyro, Fuel Pressure, turbo resenator blocked off, PCV Reroute. SoCal Stage 1 heads, ARP Studs, BD Manifold, diamond eye down pipe, AFE mouth piece, AFE intercooler pipes, KMC Rokstars 20" wheels with Nitto Terra Grappler AT
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07-24-2010, 06:55 PM
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Moderator
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Join Date: Jul 2009
Posts: 284
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how old is your fuel filter?
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Chris '01 CC/SB 4WD. Not Quite Stock. 
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07-24-2010, 07:06 PM
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Admin / Shareholder
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Join Date: May 2008
Location: Missouri
Posts: 4,440
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Sorry, but it sounds like bad injectors. 
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PM me if you'd like info on being a part owner or a vendor here 
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07-24-2010, 07:30 PM
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RPM Junkie
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Join Date: May 2009
Location: Locust, NC
Posts: 116
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Could also be a bad fuel relief valve but most 1093's on LB7's tend to be injectors.
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03 CCSB Dmax
Some Smoke, Some Air, Some Johnboy Tuning
741hp- Dunbar Approved
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07-24-2010, 07:56 PM
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Nothing much
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Join Date: Jun 2008
Location: San Angelo TX
Posts: 1,246
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How is actual rail pressure vs. desired holding?
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07-25-2010, 10:33 AM
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Been here a while!
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Join Date: Jul 2009
Posts: 36
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i havent had a chance to check throught EFI yet with actual rail prssure verses desired. the injectors are good i have one that is just at 4.0 right now. the fuel filter is new as of probably 500 miles ago
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2005 Chevy 2500HD Duramax LLY, MBRP ram air intake w/super scoop, Banks 4" exhaust, CAT DELETE and NO MUFFLER, EGR blocker plate & fingerstick, Fisher SS ExtremeV plow, Auto Meter Gauges, Boost, Pyro, Fuel Pressure, turbo resenator blocked off, PCV Reroute. SoCal Stage 1 heads, ARP Studs, BD Manifold, diamond eye down pipe, AFE mouth piece, AFE intercooler pipes, KMC Rokstars 20" wheels with Nitto Terra Grappler AT
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