No power until 2500 rpm - Chevy and GMC Duramax Diesel Forum
01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 12 (permalink) Old 09-08-2011, 09:23 AM Thread Starter
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No power until 2500 rpm

I have a maf code that I can't seem to fix and now I have the intake air temp code. I have a brand new maf sensor and a brand new airaid synthamax air filter. This all started right after I got my new injectors installed. Like the title says I have no power until 2500 rpm and a slight miss at full throttle. Brand new fuel filter and airdog aswell

2001 lb7 4x4. 120k miles
efi live by kory. Ma750 trans, 5" exhaust, airdog ii, Snow water-meth, arp studs, turbonetics billet 64mm, GOTDURAMAX? Traction bars, ATI dampener, MA motor mounts.
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post #2 of 12 (permalink) Old 09-08-2011, 09:59 AM
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bump for ya

Sam - 08 LMM rclb - PANDAMAX
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post #3 of 12 (permalink) Old 09-08-2011, 08:33 PM
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Whats your boost lookin like?

2003 LB7 CCSB Lifted 9x,xxx Miles,, 22x10.5 Novakanes ,Charcoal Matte Gray Vinyl wrap,Suncoast 1056, Gmax, SoFloDiesel 6" Custom stacks, PPE BIV, EFI Live Tuned by Rob, Merchant Motor Mounts, Eaton Tru Trac, Profab Horn, Airdog, Wetzel Wheel, Rare Parts T-rods, T-Case Brace, Pump Rub, Congnito Braces, 4" Custom welded intake,CTS Monitor,Autometer Boost/Pyro,Soflo Diesel Trac Bars, Totaled 1/16/15

2007.5 LMM CCSB 26x16 ,37" M/t's, 12" Cognito,Dual Fox Shocks/Resi,Soflo Diesel 8" Custom dss cats,Soflo Diesel Trac Bar ,AEM, EFI by Soflodiesel
1954 Dodge Job-rated with 12valve swap, 22's,5x16,s366,Suncoast,Dual Ram intake, fullcuts,4kgsk,60lb Vs,studded,Little Spray
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post #4 of 12 (permalink) Old 09-08-2011, 08:44 PM Thread Starter
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Boost is mid to high 20's. It feels like it's not making boost until 2500rpm but I have a mechanical gauge. The only code is p0101. I have researched this for hours on here the best solution I can find is to get an Efi tuned ECM with the maf rescaled in the tuning

2001 lb7 4x4. 120k miles
efi live by kory. Ma750 trans, 5" exhaust, airdog ii, Snow water-meth, arp studs, turbonetics billet 64mm, GOTDURAMAX? Traction bars, ATI dampener, MA motor mounts.
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post #5 of 12 (permalink) Old 09-08-2011, 08:54 PM
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Have u put it back to stock yet and ran it?

2003 LB7 CCSB Lifted 9x,xxx Miles,, 22x10.5 Novakanes ,Charcoal Matte Gray Vinyl wrap,Suncoast 1056, Gmax, SoFloDiesel 6" Custom stacks, PPE BIV, EFI Live Tuned by Rob, Merchant Motor Mounts, Eaton Tru Trac, Profab Horn, Airdog, Wetzel Wheel, Rare Parts T-rods, T-Case Brace, Pump Rub, Congnito Braces, 4" Custom welded intake,CTS Monitor,Autometer Boost/Pyro,Soflo Diesel Trac Bars, Totaled 1/16/15

2007.5 LMM CCSB 26x16 ,37" M/t's, 12" Cognito,Dual Fox Shocks/Resi,Soflo Diesel 8" Custom dss cats,Soflo Diesel Trac Bar ,AEM, EFI by Soflodiesel
1954 Dodge Job-rated with 12valve swap, 22's,5x16,s366,Suncoast,Dual Ram intake, fullcuts,4kgsk,60lb Vs,studded,Little Spray
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post #6 of 12 (permalink) Old 09-08-2011, 09:02 PM Thread Starter
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I can't I bought it with the intake on it and no factory airbox. I could try to find one at a junk yard or do a craigslist swap.

2001 lb7 4x4. 120k miles
efi live by kory. Ma750 trans, 5" exhaust, airdog ii, Snow water-meth, arp studs, turbonetics billet 64mm, GOTDURAMAX? Traction bars, ATI dampener, MA motor mounts.
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post #7 of 12 (permalink) Old 09-08-2011, 09:04 PM
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I meant tune back to stock with the 6 gun

2003 LB7 CCSB Lifted 9x,xxx Miles,, 22x10.5 Novakanes ,Charcoal Matte Gray Vinyl wrap,Suncoast 1056, Gmax, SoFloDiesel 6" Custom stacks, PPE BIV, EFI Live Tuned by Rob, Merchant Motor Mounts, Eaton Tru Trac, Profab Horn, Airdog, Wetzel Wheel, Rare Parts T-rods, T-Case Brace, Pump Rub, Congnito Braces, 4" Custom welded intake,CTS Monitor,Autometer Boost/Pyro,Soflo Diesel Trac Bars, Totaled 1/16/15

2007.5 LMM CCSB 26x16 ,37" M/t's, 12" Cognito,Dual Fox Shocks/Resi,Soflo Diesel 8" Custom dss cats,Soflo Diesel Trac Bar ,AEM, EFI by Soflodiesel
1954 Dodge Job-rated with 12valve swap, 22's,5x16,s366,Suncoast,Dual Ram intake, fullcuts,4kgsk,60lb Vs,studded,Little Spray
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post #8 of 12 (permalink) Old 09-08-2011, 09:14 PM Thread Starter
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I have and cleared the code it comes back within 5 miles. Weird part is if I unplug the banks all together it is in limp mode but still with just the p0101

2001 lb7 4x4. 120k miles
efi live by kory. Ma750 trans, 5" exhaust, airdog ii, Snow water-meth, arp studs, turbonetics billet 64mm, GOTDURAMAX? Traction bars, ATI dampener, MA motor mounts.
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post #9 of 12 (permalink) Old 09-08-2011, 09:34 PM
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Well I guess you can work around the p0101 with efi but It seems to me the filter might be the problem I got to looking it up and people who swapped back to factory cleared the code. Is that filter oil based?

2003 LB7 CCSB Lifted 9x,xxx Miles,, 22x10.5 Novakanes ,Charcoal Matte Gray Vinyl wrap,Suncoast 1056, Gmax, SoFloDiesel 6" Custom stacks, PPE BIV, EFI Live Tuned by Rob, Merchant Motor Mounts, Eaton Tru Trac, Profab Horn, Airdog, Wetzel Wheel, Rare Parts T-rods, T-Case Brace, Pump Rub, Congnito Braces, 4" Custom welded intake,CTS Monitor,Autometer Boost/Pyro,Soflo Diesel Trac Bars, Totaled 1/16/15

2007.5 LMM CCSB 26x16 ,37" M/t's, 12" Cognito,Dual Fox Shocks/Resi,Soflo Diesel 8" Custom dss cats,Soflo Diesel Trac Bar ,AEM, EFI by Soflodiesel
1954 Dodge Job-rated with 12valve swap, 22's,5x16,s366,Suncoast,Dual Ram intake, fullcuts,4kgsk,60lb Vs,studded,Little Spray
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post #10 of 12 (permalink) Old 09-08-2011, 09:39 PM Thread Starter
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No the synthamax is not oiled. I found a guy with a banks intake here in town I am going to give a try. If banks doesn't help I will try rescaling with Efi if that fails I will have to track down a stock airbox. Thanks for the input

2001 lb7 4x4. 120k miles
efi live by kory. Ma750 trans, 5" exhaust, airdog ii, Snow water-meth, arp studs, turbonetics billet 64mm, GOTDURAMAX? Traction bars, ATI dampener, MA motor mounts.
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