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Thread: LLY Reading question

  1. 03-02-2023 #1
    chasmosis1
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    LLY Reading question

    I am unable to read my LLY at high speed no matter what fuses I pull. Both batteries are fully charged, my laptop is fully charged, the winds blowing the right way, it's not a full moon, yada, yada, yada. I can however read it in slow speed, but I cannot read the ECM & TCM in the same read. I can read the TCM separately however. All good right? Not quite, My ECM reads that i have 3.73 gearing while me TCM shows 4.10. Is this normal? Has anyone else seen this? Is my read corrupt? I'm attaching my reads in hope of some assistance. New to diesel but have plenty of experience with gas motors. Thanks in advance.

    Initial ECM Read.hpt
    Initial TCM Read.hpt
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  2. 03-10-2023 #2
    chasmosis1
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    Wow! The LLY really is a dead subject with Hptuners! I guess the rumor is correct that the competitor is the only way to go with diesel......
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  3. 03-13-2023 #3
    Stroked06Goat
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    Did you enter a ticket with HPT?

    I haven't experienced what you are but...i do know my LB7 was clunky when read/writing. And yes the competitor focused more on those diesels over those years, where HPT went more gas. They each have their place.
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  4. 03-30-2023 #4
    tren
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    I can read LLY by itself with high speed but must read TCM slow speed and it?ll do it all in one shot. Can read TCM alone with high speed. As far as the two seperate gear ratios mine does exact same thing. An from trial an error I?ve learned to leave the top one at 3.73 and only adjust the bottom one to allow for tire size change. Another odd thing when looking at TCM read it shows I have a 6 speed and I don?t. Not sure why it?s so goofy. I?d probably had gone with the competition?s hardware if I was to do it all over again just to use their software.
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  5. 1 Week Ago #5
    TheRedMonkey98
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    if you have an aftermarket radio with the converter i.e., if it had premium sound of sorts and has the middleman converter to turn the radio on, the converter box talks to the can signal to enable power to the aftermarket radio. your issues may lie there. if you have the setup as I described simplest is to unplug the converter and read again, all of this depending on if this applies to you.
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