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  1. B

    New lml speedo is crazy

    Jw we flashed it so many times not certain... But I will say I did have tocopy the injector codes from the glow plug control mudule to the ecm. New ecm and tune over is good as new!
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    Intake heater

    Sorry about that. I had double checked and my guy said it's different for me because I'm a " commercial truck" Wonder if it's actually a business owning the truck or just registration
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    New lml speedo is crazy

    @mark I totally understand brother! At works it's insane the number of things that happen because they read something online. "some idiot" posts a "tsb" on all hydraulic pumps and I show up... Blown motor. Employee will look at the and tell me that they read online to drain atf from a ram and...
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    New lml speedo is crazy

    Jwrkansas. Yes with the 5 switch. Tuner had me cut the wires to nthe switch just to make sure I pinned right which was 11 and 35 off the top of my head.
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    Intake heater

    Good luck!!! If you have an issue just write to the gm advisor on the website they are great to push that stuff through
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    Intake heater

    In case the I have attached a screen shot of the warranty guide
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    New lml speedo is crazy

    Thank you so much. You've made my year!!!
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    New lml speedo is crazy

    Does it matter if it's from a base lml or a fully loaded one
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    New lml speedo is crazy

    Pics try 2
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    New lml speedo is crazy

    Pics
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    New lml speedo is crazy

    So my ecu doesn't exactly match anything locally. Do you know a ecm that's out of a Chevy 4x4 duramax would work if the numbers are a little off? I'll try to add a Pic of my ecu code
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    Tunes

    1GT426E85DF126175 Is my vin number Not certain on the os. Headed to the truck now.
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    Tunes

    I have an efi live for reaper. I'm trying to get a true stock tune. Does anyone have one for a 13 lml? ?not sure if it would even work
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    New lml speedo is crazy

    How would you go about programming it? I'm very new to duramax and completely fustrstrated. Thanks for your help I appreciate it!!!
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    New lml speedo is crazy

    What's the best procedure for a new ecm. Dealer out here are pretty insane.
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    New member from Vegas

    Thanks Stokesk5
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    New lml speedo is crazy

    Bought a lml. Ran great . Fully Deleted it. 4 in lift followed by cutouts . Threw some 37s on it. Then bd bottom sump and fass 165. Now when the truck drives its ten times faster on the speedo then real life. Snap on says all 4 wheel sensors are reading close to GPS. This is happening over...
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    New member from Vegas

    Hello I'm new to the Duramax owner. Previous many powerstroke owner . Stuck in Idaho trying to figure out this Duramax lol.
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