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Thread: Help with vehicle staying running and cold starts without throttle aid...

  1. #21
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    Quote Originally Posted by ACCLR8N View Post
    Isn't a lot of the cold start fueling based on coolant and intake air temps?
    He has his after-start IAT enrichment zero'd out, but it will still have a serious impact on his temperature blending... which determines fueling. It would probably be a good idea if sac811 switched to a separate IAT, which is compatible, like you are doing.

  2. #22
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    Quote Originally Posted by sac811 View Post
    When its hot the iac counts are right at 40, it doesnt get to that until ive been riding around for 20-30 mins tho.

    The default IAC is set to 310, should that be changed maybe before opening up the tb blade some and ending up with higher iac counts once actually warm?
    No, leave your default IAC. I've modified your IAC table. See if this helps.
    Attached Files Attached Files

  3. #23
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    Quote Originally Posted by statesman View Post
    No, leave your default IAC. I've modified your IAC table. See if this helps.
    This is the start with your new file before performing rafig rafpn:

    LS1B_0449.efi

    I will have a start attempt with same file after rafig later today.

  4. #24
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    Here is my cold start log after rafig/rafpn:

    LS1B_0453.efi

    It seemed like it may have wanted to start better, but it definitely ran better than in the past with less surging and dying.

  5. #25
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    Quote Originally Posted by sac811 View Post
    It seemed like it may have wanted to start better, but it definitely ran better than in the past with less surging and dying.
    We're making progress... that's a good thing.

    Can you post your new tune with your updated airflow.

  6. #26
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    Quote Originally Posted by statesman View Post
    We're making progress... that's a good thing.

    Can you post your new tune with your updated airflow.
    Newest tune file:

    Mod2_OL15_LingMAF_PortedTBSS_Fast.ctz

  7. #27
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    By what method are you correcting VE and MAF tables...?

  8. #28
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    Quote Originally Posted by joecar View Post
    By what method are you correcting VE and MAF tables...?
    Calc.maft

  9. #29
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    Your desired airflow table looks better now.

    Okay, here's Mod3. Only small changes, but should reduce the surging.

    Post a log when you've tried it.
    Attached Files Attached Files

  10. #30
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    Quote Originally Posted by joecar View Post
    By what method are you correcting VE and MAF tables...?
    Does something look wrong to you?

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