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2015 idle adjustment

Discussion in 'Technical Chat' started by 57chevylt1, Sep 30, 2017.

  1. Sep 30, 2017 at 4:12 PM
    #1
    57chevylt1

    57chevylt1 [OP] Member

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    Are there any adjustment capabilities to my 2015 idle. I'm in the dealer specs but don't like my truck idling at 1000 rpm
    I would prefer a constant 550/600. Any companies or members that can do this?
    Thanks
     
  2. Sep 30, 2017 at 6:29 PM
    #2
    BlueSTL

    BlueSTL Well-Known Member

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    Idle spec is 650-750 in neutral with a/c off. 1000 is too high once the ecu goes closed loop. You are talking about after the engine is warm correct? If it is really high I would suspect an issue with the idle control system which could be throttle body, MAF, vacuum leak, etc. But would expect a code if any of those were truly a problem
     
  3. Sep 30, 2017 at 6:40 PM
    #3
    57chevylt1

    57chevylt1 [OP] Member

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    No codes. Yes the engine is warm.
    Idles at 650 stopped with brake applied. If I release brake with vehicle in gear or not it goes to 1000. Only idles at 650 with brakes applied in gear. If braking to stop, idle doesn't go to 650 until almost completely stopped.
     
  4. Sep 30, 2017 at 6:55 PM
    #4
    TreyStewart

    TreyStewart Well-Known Member

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    Tigerville, South Carolina
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    2013 PreRunner
    URD everything, nfab front bumper with 2 LED bars, maxtrax spindle lift, Baja rack
    I get like 500-600 at stop, but I've got URD headers, ypipe, CAI, and maf cal
     
  5. Sep 30, 2017 at 7:01 PM
    #5
    12TRDTacoma

    12TRDTacoma Powered by Ford, GM, VW, and Mercedes

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    Concordia
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    Idle is computer controlled exclusively. There is no adjustment screw like on those old school cars. However, if you feel idle is too high you may have a dirty TB which requires cleaning, the MAF is out of whack calibration wise, or you do indeed have a vacuum leak. Get the engine smoke checked and then clean out the TB, then replace the MAF if necessary In that order.
     

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