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Thread: Hard starts when hot?

  1. #1

    Hard starts when hot?

    I've messed with a little bit of everything trying to fix this but everything is perfect except hot starts. So I don't want to mess it up. When it's cold it fires up perfect every time. but as soon as it gets over about 100 degrees maybe a little less I have to give it gas to get it to start. Once it's started in runs perfect.

    Maybe you guys can see something?

    Attachment 29325

  2. #2
    Quote Originally Posted by c.u View Post
    idle start up airflow. start adding .5 from 68-305 and to 6.5(sec) till you no longer have to give it gas for it to start.
    Cool thanks!

  3. #3
    Went both directions till it maxed out and still no good. It's darn close but I still have to give it some gas to fire up when it's hot.

  4. #4
    Senior Tuner DSteck's Avatar
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    Holy shit. That tune is a travesty.

    You should reload a stock MAF calibration. Having zeros in the bottom cells is ensuring the engine gets no fuel when it's trying to start until it sees higher airflow. You have a lot of other pretty screwed up stuff in that tune too.

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