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Thread: Need help with LS1/4L60e tune, bad idle

  1. #21
    Lifetime Member limited cv8r's Avatar
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    Whoops, my bad. Yeah I did the wrong file.
    What are the problems you are having with your idle?
    Last edited by limited cv8r; August 26th, 2015 at 02:59 AM.
    It's all good until it goes "Bang"

  2. #22
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    It will start just fine, and then when I give it gas it goes very low and drops down sometime dies, It also will die if I kick the A/C on, I do not have a wire from the A/C to the computer so I was trying to compensate the idle, if that is not a good way of doing it I can run the wire.

  3. #23
    Lifetime Member limited cv8r's Avatar
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    Try this. I added some spark to your idle underspeed which was all zero's after about 200rpm error.
    Attached Files Attached Files
    It's all good until it goes "Bang"

  4. #24
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    Quote Originally Posted by limited cv8r View Post
    Try this. I added some spark to your idle underspeed which was all zero's after about 200rpm error.
    OK I loaded this file and went on a drive did a few pulls on the throttle, not sure I did a Data Log correct, but I did not see any other way to do it.

    Let me know what you think, but as of now it was much better. Thanks. I could even run the A/C and it did not fall on its face.

    Is adding some spark advancing the timing?
    Attached Files Attached Files

  5. #25
    Lifetime Member limited cv8r's Avatar
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    It does add timing, but only to help your car from stalling, depending on the RPM error from desired idle speed. I did make a few other changes. If you do a compare between your file you uploaded and the modified one you will be able to see what was modified.
    Glad it helped you.
    It's all good until it goes "Bang"

  6. #26
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    Quote Originally Posted by limited cv8r View Post
    It does add timing, but only to help your car from stalling, depending on the RPM error from desired idle speed. I did make a few other changes. If you do a compare between your file you uploaded and the modified one you will be able to see what was modified.
    Glad it helped you.
    Did that Log file tell you anything? I am not sure how that works, I hit play and can watch the Dashboard.

  7. #27
    Lifetime Member limited cv8r's Avatar
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    That log file doesn't look too bad. A quick read of the scan tool PDF will help you understand viewing your logs better and how to use the different dash page.
    It's all good until it goes "Bang"

  8. #28
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    Did not know there was one, I will take a look thanks for the info

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