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Thread: lean first gear

  1. 07-20-2012 #1
    Public Enemy
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    lean first gear

    was tuning a holden gen 3 ls1 with ETC, heads/cam setup.

    I switched to SD mode since his MAF is not working. disabled ltft's and using wideband to tune partial fueling and WOT.

    I have a problem where 1st is always lean... 2nd and 3rd gear is fine though.

    I have posted a log which shows IDC/injector pulse width increasing but still shows 1st gear lean. I haven't logged the wideband through the scanner, but i do see it with the lm2 hooked up in the offroad pipe.

    You can also tell by seeing the o2 sensor voltage in the scanner.

    Any advise?
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  2. 07-21-2012 #2
    Public Enemy
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    anyone?
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  3. 07-21-2012 #3
    sunny
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    http://www.hptuners.com/forum/showthread.php?t=39808
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  4. 07-22-2012 #4
    Public Enemy
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    your case is different.. in my case its the a/f ratio is 16's and immediately goes to 12's.
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