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Thread: 2000 Sierra LQ4, GT2-3 cam 207/220 .571/.578 63lb siemans L107 inj help base tune!

  1. #1

    2000 Sierra LQ4, GT2-3 cam 207/220 .571/.578 63lb siemans L107 inj help base tune!

    I need a base to start from on this truck. Swapped the 5.3 for the 6.0. Runs way too rich now because we swapped the stock injectors also. I search the repository but no luck, unless I'm overlooking something. Just need to get it going again. Will fine tune later.

  2. #2
    Advanced Tuner
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    Apr 2006
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    those are huge injectors for that setup...

  3. #3
    Your injector data is way off for that injector. Get/buy the correct data, or at least try to get the flow rate close to the new injector. You will wash your rings and/or kill your cat/s if you keep running it like that.

  4. #4
    Advanced Tuner
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    Apr 2006
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    Quote Originally Posted by JoeyJoeJoe View Post
    Your injector data is way off for that injector. Get/buy the correct data, or at least try to get the flow rate close to the new injector. You will wash your rings and/or kill your cat/s if you keep running it like that.
    theres a spreadsheet for it around here somewhere