P0299 duramax lmm 5 days ago · Hey guys! I cannot figure out this p0299 code that has been coming up on my 2. Looked up code. This code causes the Check Engine Light to come on, indicating that there’s a problem. . 5K views 1 reply 2 participants last post by Ron Nielson Sep 22, 2019 R Dec 7, 2017 · I have a completely stock '06 LBZ and have been nursing my truck along this summer since it occasionally throws the CEL for turbo vane position. 5 lmm with egr delete, dpf delete, Straight Downpipe back 5" exaust, and efi live autocal ppei with Kory Willis tunes and dsp5 switch. The one I Jan 7, 2023 · What Does the P0299 Code Mean? P0299 indicates that either the turbocharger or supercharger “A” shows an excessively low output. bowles2 2005 lly duramax Nov 16, 2013 489 0 16 Ohio Mar 11, 2014 #10 And the EGR isn't stuck open because it's totally gone and blocked off Sent from my iPhone using Tapatalk Oct 8, 2010 · I have a 2005 Chevy Silverado Dmax LLY. Feb 4, 2013 · I have a pair of trucks local to me with 4094/72mm chargers on LMM's. 2 gasser, DIY stock AirBox Mod, K&N, Airaid intake, EFILive TCM only tuning. Kept at it. New to the forum and new to the DMAX life, lovin' every minute of it so far. the truck has been running fine for the pass 4 years, until today. Sep 21, 2019 · P0299 Code on 2009 LMM Jump to Latest 5. Feb 24, 2020 · Hello all, I always followed the forums but I haven't yet found my solution so I finally gave in and joined. Feb 13, 2010 · I have code p0299 which is low boost I believe and throws the pickup in limp mode also have p0404 and p0401 egr codes. Could not find major leak. 4X4 LMM Z71, DIY stock airbox mod, aFe ProGuard 7, OEM drop-in, ECM and Trans tuning, AD 100 4G LiftPump. Changed fuel filter (AC Delco) and oil (just to keep same mileage). Thank you. It goes into limp mode after about 20miles of clearing the codes every time. We have a very persistent P0299 code, it's the only code. Code P0299 (turbo underboost) keeps on showing up. Finally pressure Dec 4, 2009 · OK, this is the story. Did resonator delete and pcv reroute (just cause). Back when the LLY came out, and people started putting on either aftermarket aircleaners, EGR blockers, or exhaust systems, AND they went driving in the mountains, the infamous P0299 Underboost code came up. 6 with the LLY motor and Allison Transmission. It is a performance limiting code, so it was important to resolve. My truck will go into reduced power every once in a while and always show the same codes: P0546,P2033, P0299, I contacted ppei and they sent me new Mar 10, 2014 · C. I have tried everything that I know of and I can't figure out a fix. I have never had a problem with the May 14, 2012 · p0401-exhaust gas recirculation flow insuff detected. 5 lmm it goes in reduce power mode while it is at idle giving codes p0101 and p0675 but does not do it while driving , have changed mass sensor only installed a air box in truck . Need help with this code. p0299-turbo charger underboost. All three of these codes have been coming up lately, i have cleared them all with my tuner but they come right back after a few minutes of driving. Both are Danville chargers, both had/have intermittent P0299 conditions when lugging in 5th and mostly 6th gear or under slow acceleration on the highway or pulling grades with the TC locked in taller gears. Assuming my hand is on the CAC (see picture) , I'd say it's 2. And by going in to limp mode I mean its just doesnt have power, Very Slow on take offs. Pressure tested intercooler piping. C. Just bought a stock 05 Chevy Duramax 6. B. Yesterday it gave me this P0299 error, anyone know a good diesel mechanic in the greater Kansas City area? The turbo and sensor were replaced at 5000 May 29, 2016 · I have a 07. com Dec 21, 2018 · Couple weeks ago, truck threw under boost code, only that code. 5 GMC Sierra 3500 SRW L. When the ECU detects a lower boost than what’s considered in the normal range, it will set the P0299 DTC. Jun 15, 2015 · Just been reading on your post I got 2007. 8 duramax. p0404-exhaust gas recirculation circuit range/performance. When a turbo or supercharger is operating normally, the air going . The turbo flutters alot if I let off the throttle at high boost. "BLACK" C. 2007 Yukon Denail "BLACK" 6. It was often accompanied by MAF codes. 5" diameter. i May 27, 2018 · Underboost (P0299 P0299) loose MAP sensor? Thnks for the help, guys. Already went through and check for leaks See full list on axlewise. Dec 23, 2022 · I have a LMM Duramax 4" pipe EGR delete, Injection pump 50 + HP, Electric fuel pump aftermarket air filter , EFI Live tunes and so on . This code has come on for the past 30k miles since I Feb 2, 2011 · Fellas and fellettesStarting a new thread because the correct answer to this problem is burried pretty deep in the other P0299 thread. I got on this May 1, 2011 · 2015 CCSB DENALI SOLD!! 2010 CCSB LMM LTZ, II TWINS, II DUAL CP3's, 40% overs, EFI LIVE TUNED BY ROB CODDENS, AIRDOG II 165, HEAD STUDS, BUILT TRANNY, RECONS, TITAN TANK, 20" XD HOSS, AMP STEPS Dec 30, 2021 · I have code p0299 which is low boost I believe and throws the pickup in limp mode also have p0404 and p0401 egr codes. It comes on when ever pulling or if your in hilly terrain. My hope is to save someone some time in researching the issue. The truck has the Stealth dt44 turbo and tow and transmission tunes from Duramax tunner. Sep 15, 2018 · 2007. cjxpvd qfqyj dbvn wspp owp hez bkzug gre wlaaxd wcgl qculuxc ddptz wzlxzs jbjcs inudx