Airdog 2 165 problems!!!!!!! Help!! - Chevy and GMC Duramax Diesel Forum
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Old 01-20-2013, 09:31 PM   eBay Motors  #1 (permalink)
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Airdog 2 165 problems!!!!!!! Help!!

I got a 2008 gmc Sierra 2500 LMM
Installed Airdog 2 165 about 3 weeks ago. Truck was running great until yesterday. Fuel pressure at idle is 4-5. Truck sputters when driving in my low tunes on efi live but doesn't sputter on the high tunes. I am completely dumbfounded. If someone could help me I would appreciate it thanks
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Old 01-20-2013, 10:26 PM   eBay Motors  #2 (permalink)
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Is that 4-5psi coming out of the airdog or 4-5k rail pressure?
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2004 lb7 ccsb 4x4. Efi live tuned by Rob at ATP, Built trans by Brad at Calvins Auto, Wehrli custom fab s475/stock twin turbo kit, ARP head studs, tie rod sleeves, cognito idler/pitman arm braces, cognito traction bars, airdog 165, turbo horn, LML driver side manifold, cat fuel filter adapter 1r-0749, installed cab lights and tow mirrors. NBS back seats. 6 inch zone offroad lift lowered down and running 305/55/20, optima red tops, Mbrp 5 inch turbo back straight pipe exhaust.

Soon to come: Built motor
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Old 01-20-2013, 10:32 PM   eBay Motors  #3 (permalink)
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Rail pressure
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2008 gmc Sierra 2500 LMM
EFI live
Airdog 2 165
Egr block
Afe stage 2
Mbrp 5" turbo back
Leveled on 35's
Edge insight w/ dash pod
Built trans by Mike L.
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Old 01-20-2013, 10:43 PM   eBay Motors  #4 (permalink)
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That's normal rail pressure at idle.

What is the pressure when you hold it to the floor?


.
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07' Chevy Silverado HD
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--EFILive by KB3MMX Tuning W/ SDP Towing Twins (Billet S475 over Stock)
--SILVERLINE 4" Stainless Exhaust
--AMSOIL Synthetics and filtration bumper to bumper, including Bypass
--DDM tuning HID's in Low and High Beams, 6000K Lows/4250K Highs
--PPE rear Diff cover, PPE Deep Trans Pan, PPE High Flow Manifolds and Up Pipes
--Danville 3" Y Bridge and big air intake kit / EGR delete
--Airdog II DF200 w/ CAT UHE filter upgrade...etc,etc...
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Old 01-20-2013, 11:20 PM   eBay Motors  #5 (permalink)
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What's the pressure coming out of the airdog?
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2004 lb7 ccsb 4x4. Efi live tuned by Rob at ATP, Built trans by Brad at Calvins Auto, Wehrli custom fab s475/stock twin turbo kit, ARP head studs, tie rod sleeves, cognito idler/pitman arm braces, cognito traction bars, airdog 165, turbo horn, LML driver side manifold, cat fuel filter adapter 1r-0749, installed cab lights and tow mirrors. NBS back seats. 6 inch zone offroad lift lowered down and running 305/55/20, optima red tops, Mbrp 5 inch turbo back straight pipe exhaust.

Soon to come: Built motor
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Old 01-21-2013, 05:44 AM   eBay Motors  #6 (permalink)
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Not sure about that. Well if that's normal I'm trying to figure out why truck sputters. Because it feels like the air dog works then doesn't which is causing the sputtering
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2008 gmc Sierra 2500 LMM
EFI live
Airdog 2 165
Egr block
Afe stage 2
Mbrp 5" turbo back
Leveled on 35's
Edge insight w/ dash pod
Built trans by Mike L.
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Old 01-21-2013, 09:28 AM   eBay Motors  #7 (permalink)
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Just talked to josh at airdog he said that rail pressure at idle should be at 8-10
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2008 gmc Sierra 2500 LMM
EFI live
Airdog 2 165
Egr block
Afe stage 2
Mbrp 5" turbo back
Leveled on 35's
Edge insight w/ dash pod
Built trans by Mike L.
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Old 01-21-2013, 03:47 PM   eBay Motors  #8 (permalink)
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So checked everything out. Fuel regulator was turned all the way in. Put it to settings according to airdog. Still got a sputter. Rail pressure was at 6kpsi idle then drops to 4kpsi
Any help is appreciated thanks
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2008 gmc Sierra 2500 LMM
EFI live
Airdog 2 165
Egr block
Afe stage 2
Mbrp 5" turbo back
Leveled on 35's
Edge insight w/ dash pod
Built trans by Mike L.
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Old 01-22-2013, 09:05 AM   eBay Motors  #9 (permalink)
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Ok so pulled quick connect off going to engine side of pump and pump is working fine. Putting out a lot of fuel. Possibility it could be the filters for sputtering ?
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2008 gmc Sierra 2500 LMM
EFI live
Airdog 2 165
Egr block
Afe stage 2
Mbrp 5" turbo back
Leveled on 35's
Edge insight w/ dash pod
Built trans by Mike L.
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Old 01-22-2013, 10:25 AM   eBay Motors  #10 (permalink)
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Quote:
Originally Posted by mikehall112 View Post
Just talked to josh at airdog he said that rail pressure at idle should be at 8-10

8-10k? Josh at airdog needs to know wtf he is talking about before trying to help diagnose a problem.
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S&B intake, 4in turbo back exhaust, Diamond Eye DP, EGR Block off, PCV re-route, EFI live (IdahoRob), AD 165, Transgo Jr, Alligator Cat adaptor/filter, Cognito UCA's/pitman/idler arms, Sulastic shackles(WASTE OF MONEY), Billstein struts/stabilizer, Fabtech Tie Rods, B&W turnover ball, Edge insight CTS, Alpine dvd h/u, 4300k HID's, Leveled mirrors, Amsoil fluids, 285/75/16 Goodyear Duratracs
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