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1-17 of 17 Results
  1. Drivetrain
    I just cant believe that with all of the experiences and knowledge on this site, that I cannot get a straight answer to this problem. I am certain someone here has figured out how to correct this issue. Any help would be greatly appreciated. I have a 2018 Denali Duramax and without thinking...
  2. General Discussion
    Let me first start out by saying thanks for all of you that take the time out and help total strangers. I bought this Truck last year and didn't have any real problems, aside from ones that could've been avoided until Probably 4 months ago. I've had three Mechanics look at it with the third and...
  3. Gauges, Electronics and Wiring.
    Bare with me it’s a bit lengthy. Have a 2010 LMM that’s been giving me TCM and ECM communication codes. Traction control and ABS lights come on and at higher speeds it will hesitate to shift. Took it to a shop the first time and they found a blown fuse (unrelated) and a bad wheel speed sensor...
  4. 01-04.5 LB7 Duramax Powertrain
    I’m looking at buying a 2002 Chevy 2500 6.6 duramax. That i drove ran excellent then when I went get it wouldn’t start. The guy told me he had have ecm reflashed three times. When he get it reflashed runs perfect for 3 to 6 month then does it again. Any idea what could be cause this. I really...
  5. 06-07 LBZ & LLY Duramax Powertrain
    A little back history: Been in the negative temps for a couple days now and I add power service every fill-up once it gets to 30° at night. Haven’t had any issues this winter yet. This morning on my way into work my truck (07 classic LBZ) threw a CEL and started to bog down a little like it was...
  6. EFI Live
    Hello all! I have EFI Live custom tuning and a Autocal. Can anyone tell me if the Autocal logs both the ECM & TCM simultaneously? Thanks!
  7. EFI Live
    I just recently had some work done to my LLY. It has regular ol EFI live with a DSP5 from Kory Willis. I’m looking to change up my tunes. Unfortunately the tunes were uploaded via laptop and my tuner doesn’t have my stock tune on file. I’m looking to upgrade to an autocal, that way I always have...
  8. 06-07 LBZ & LLY Performance Parts Discussion
    has anyone had issues w/ the Edge tuner frying the ECM on a 2007 LBZ? Stupid me, and yes i admit it, i fell for the Duramileage crap... ordered one, didn't see the mileage increase... went thru about 3 days of emails, phone calls, etc before finally getting to send it back for a refund... I put...
  9. 01-04.5 LB7 Duramax Powertrain
    So i just did all new injectors in my lb7. Got it back together and its loping real bad. After i give a little throttle the loping goes away but at an idle its aweful. So I checked for leaks, nothing. Wont hold a prime either. So i just got off the phone with this diesel mechanic at tires plus...
  10. 06-07 LBZ & LLY Duramax Powertrain
    Hey guys, So I just bought a new/used 06 Duramax w/ 45K miles. Before I bought it, I ran my PPE to see if any codes came across, and it was clean. I drove it up from Seattle to Anchorage (total of about 2400 miles), and when I hit Whitehorse (about 700 miles from Anchorage) the truck chimed at...
  11. 911 Problems Forum
    Ok this is kinda a long story but i need any help i can get! I posted my edge juice w/ attitude on craiglist for sale b/c i wanted a PPE. Well i get a call from a guy down in arkansas about 2 hours from me and he had a PPE he wanted 2 trade straight across. He cldnt meet me 2day so i told him i...
  12. EFI Live
    I'm trying to flash a script into the truck. All i see is Connection to the ECM has been lost, Connection to the ECM has been lost, Connection to the ECM has been lost. All the plugs are in. No cell phone chargers plugged in. No guages plugged in. What am i doing wrong:help
  13. 06-07 LBZ & LLY Duramax Powertrain
    I have been chaseing better mileage in my 07 new body style truck. Currently it has a duramileage tuner in it. I was looking at the data for injector flow calibrations with my tech 2 an it shows stars. I looked at the same screen on a 09 an found a very long alfa numerical code for each...
  14. 911 Problems Forum
    Hi folks. A friend of mine tried using his HP Tuner to remove some of the torque management from my '05 Silverado 2500HD and after writing to the ECM the engine won't crank and the Passlock light comes on now. The worst part is it won't connect to the Tuner again to go back to stock. I suspect...
  15. General Discussion
    Sort of a long story I will try to keep it simple. 02 LB7 just got out of warranty. Decided to pick up a used Hypertech programmer because it was really cheap. Turned out the VIN was locked. Talked to a few guys and they said that I could have the dealer cheat it by flashing my ecm with the...
  16. Looking For/ Wanting To Buy
    I need the main wiring harness for an 03 Duramax. This is the harness that goes from the ECM to the fusebox, to the motor harness, and finally to the Trans. I also need the small harness that goes from the fusebox to the front lights. Please let me know if you know of anything, I am anxious...
  17. Duramax Engine Swaps
    Hey guys need some advice on the latest project.... I've got a 1972 C20 that I want to swap the tired 350 for a Duramax. So far that I've done the research for and found out that each generation has its own problems. I'm wondering which one that you guys would suggest dropping in. Then once...
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