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  1. 06-07 LBZ & LLY Performance Parts Discussion
    I own a 06 lbz Duramax and deleted it not too long ago and have wanted to get rid of the check engine light and tell the engine it’s still there but also want the digital gages I’ve been looking into the edge evolution cts3 I’ve read forums about it doing what I need but still stuck on what...
  2. 2020+ LM2 Duramax Powertrain
    Question for anyone with more information about fault code P049D: EGR “A” Control Position Exceeded Learning Limit. I have a 2020 Chevy silverado 1500 with the 3.0 Duramax with 81000 miles. I started my truck the other day and received the "service emission system" message along with a check...
  3. 11-16 LML Duramax Powertrain
    I dont know if this could help someone out there, but it would have saved me a lot of time if i had known about this ahead of time. I will cut out all the middle man stuff and just give you all the meat and potatoes. I was getting a code P0406 for EGR sensor A circuit high, and a code P2493 &...
  4. General Discussions
    Just got a 2024 Chevy HC Duramax, I've put 300 miles on the truck. I got a notification that the emission system needed serviced, took the truck in and found out the EGR valve is bad. Anybody else had this problem? Just seems odd that the valve is bad considering the truck is basically brand new.
  5. 07.5-10 LMM Duramax Powertrain
    I've been rebuilding an 08 LMM with low mileage and we're finally getting into the upkeep and backlog of maintenance on the drivetrain after replacing/repairing/painting panels and other bodywork. It was mentioned to me that I should look into an EGR Delete/Chip setup. I did some searching...
  6. HP

    Performance Upgrades
    How i make my truck go faster
  7. General Discussions
    Ok I was driving down the road and the message come across my Dash saying clean exhaust filter then immediately went into limp mode I disconnected the battery overnight to hopefully clear any codes it had and I was going to take it for a run down the interstate I didn't make it 15 minutes before...
  8. General Discussions
    Annybody else having issues with their new Sierra? Ive had a new transmission and catalytic converter at 8k miles. Now new egr valves at 12k miles....am I alone with these issues, or are there more out there?
  9. General Discussions
    New to me 18 L5P. When engaging my truck in fast idle does the egr close? From the upper Midwest with cold winters so would like to allow my truck to idle a little bit without recirculating the crud.
  10. 2020+ GM T1 Platform Powertrain
    If I run a tune instead of going through all the trouble of removing the EGR is it ok to leave it in place? Will the tune keep the egr from functioning? Only reason I ask if the soot build up I've been seeing in posts. I want this truck to last. Let me know my options, reccomendations
  11. General Discussions
    What’s up everyone need some help. I am throwing an engine code for the EGR, which is very strange situation. The engine light will come on and stay on for days then it will do a white smoke dump and then the light will turn off for a day or two then it will come back on. It has repeated the...
    egr
  12. Aftermarket Mods.
    So I have a LB7 from California with the EGR stuff on there and basically i was just wondering if the stealth 67G2 Turbo would fit. yes i know it says its a drop in factory appearing turbo but i havent deleted my egr yet and to do that the right way i want to get different up pipes and a...
  13. 11-16 LML Duramax Powertrain
    During a 600 mile trip from Reno to Southeastern Idaho my CEL light and service emission system message popped up while traveling near Elko. I am driving a 2015 GMC Sierra 2500HD Duramax with 170,000 mostly highway miles. The vehicle has been exclusively serviced at a GMC dealership for oil...
    egr
  14. Aftermarket Mods.
    So I bought an 08 lmm 6 or so years ago and it had the dpf removed with only the cat remaining, I'm assuming for a muffler? I've just now gotten around to doing an egr delete as I scored a good deal on a ppe cold side pipe that is a 2 piece allowing the grid heater to be retained. My question...
  15. General Discussions
    So I bought an 08 lmm 6 or so years ago and it had the dpf removed with only the cat remaining, I'm assuming for a muffler? I've just now gotten around to doing an egr delete as I scored a good deal on a ppe cold side pipe that is a 2 piece allowing the grid heater to be retained. My question...
  16. EFI Live
    I wanted to buy a flashscan for my lmm to do my own tuning for what people now call "dpf back kits" to not draw epa attention. Are the efr-dpf parameters still available on the efi live software or have they removed it?
  17. 04.5-05 LLY Performance Parts Discussion
    Hi everyone, I have a stock 05 LLY Sierra 2500HD. I was changing out the thermostats when I noticed an oily soot build up down from where the EGR intake manifold connects to the engine. Is there a gasket that should be replaced there and is it as simple as unbolting the manifold at that spot and...
  18. Aftermarket Mods.
    Hello, I have a 2008 LMM deleted and tuned. My EGR isn’t necessarily “deleted” but it is disabled. Will I lower my egts by putting in a aftermarket pipe? Or will a blocker plate do as needed because it is disabled anyway? Should I even worry about taking it out if it’s disabled even though there...
  19. 04.5-05 LLY Performance Parts Discussion
    I recently bought a ppe xcelerator economy for my mostly stock lly. The only real mods are a deleted egr with finger stick. Stock trans, head gaskets were done, with arp studs, but no real performance parts. I have torque pro, so I can watch MAF, egr, boost, etc..... anyway, I installed the...
  20. New Member Introductions
    Hello Forum. I've been a member for a few years, but have used this forum a lot since buying my LLY in 2011..This is my first post... You guys have helped me fix some things my self or at least helped me be able to discuss intelligently with "experts." There aren't many diesel mechanics in my...
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