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Thread: Poor idle needing help

  1. #1

    Poor idle needing help

    When I first start it my air fuel is a little Rich and then the fuel trims start cutting fuel and are around -30 and make it go in the 17s afr. What makes the fuel trims take so much fuel away? Thanks guys.
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    Last edited by Raddtadd; 05-04-2016 at 08:06 PM.

  2. #2
    Also if I command a 14.7 on the scanner it idles awesome but once I turn it off the afr starts climbing again.

  3. #3
    Advanced Tuner
    Join Date
    Jun 2012
    Posts
    225
    Do a log and log commanded afr to see what the pcm is commanding. Are you sure you have the proper injector data?

  4. #4
    Okay I will. I'm in the process of changing heads at the moment. And yes. The injectors are id1000s and it doesn't seem like injectors.. Cause if I command it then it runs good but once I don't the stfts take all the fuel away