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hard start after flashing tune

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Old 07-31-2013, 06:11 PM
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Default hard start after flashing tune
how come after every time I flash a new tune my truck wont hardly start and will only run for a second or two then shuts off?? then all the sudden its like something flips a switch and it runs fine.........
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Old 07-31-2013, 07:35 PM
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ive had those problems several times.. no clue.
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Old 07-31-2013, 07:38 PM
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I am betting you are speed density, if so then it is because it has to set the MAF code and learn the idle trims as I was told. Mine does the same, it has done this since I went 2bar in 06'
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Old 07-31-2013, 07:48 PM
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Yup, I'm SD. I wonder if I completely disable whatever code you're talking about it'll fix that..? Like instead of just having it set to no mil report or whatever it's called?
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Old 07-31-2013, 08:27 PM
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It has to set in order for it to go into Speed density mode.
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Old 08-01-2013, 09:23 AM
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ooo... JK
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Old 08-01-2013, 09:27 AM
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my 408 did that for a while. i have no clue what charlie did to fix it but it fired right up after every tune after he messed with it. i want to say it was in the base idle airflow table? i'm probably wrong.
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Old 08-01-2013, 09:28 AM
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Mine does the same. A lot of vehicles actually do that and are still using the maf.
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Old 08-01-2013, 09:35 AM
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my carb setup doesnt. carb>efi
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Old 08-01-2013, 09:48 AM
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Depends on whether you got fuel in the bowls or not lol
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