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Revs go up when decelerating/coming to a stop

Discussion in 'VF Holden Commodore (2013 - 2017)' started by clappa, Sep 28, 2019.

  1. clappa

    clappa New Member

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    Hey all
    This morning I cleaned the throttle bottle with cleaner. since then, when I come to a stop the revs increase to 2000rpm then drop back to normal.
    I have a 2016 vf sos series 2 redline..
    Everything went back together normally. Have I accidentally sprayed or stuffed a sensor?
     
  2. Milo 6.0

    Milo 6.0 Member

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    Did you unplug the t/b and remove it to clean it?
    If not you might have to do an ecu reset.
    I unplugged mine and removed and cleaned it,no issues.
    Im not familiar with what the manifold looks like inside,possibly still got t/b cleaner residue in there causing revs to play up?
     
  3. clappa

    clappa New Member

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    Nah cleaned it on the car. how do I do an ecu reset?
     
  4. Milo 6.0

    Milo 6.0 Member

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    Disconnect the battery for a while,see if that helps.
     
  5. Milo 6.0

    Milo 6.0 Member

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    How did you go?
     
  6. XR WOT

    XR WOT New Member

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    Pretty much anything you do under the bonnet there's a senser for it. Like milo said disconnect the battery for awhile & everthing will reset and the sensers will pick up on what your done & will set them selfs accordingly. Shouldn't be a problem.
     
  7. clappa

    clappa New Member

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    Sorry about the delay. Recleaned and sprayed everything, and mostly it seems ok yetserday.
    This morning, every now and then it would increase to about 1600rpm when i come to a stop then drop back.

    When you say disconnect the battery...As in just take the positive terminal off for a few hours?
     
  8. XR WOT

    XR WOT New Member

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  9. XR WOT

    XR WOT New Member

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    Nah 1/2 hour be heaps. It will reset everything. It should fix your problem.
     
  10. clappa

    clappa New Member

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    sweet. will try that tonight. and just take the positive terminal off the battery?
     
  11. XR WOT

    XR WOT New Member

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    Yeh take positive off because some sound systems have their own ground & will still power up if you just take off the negative. But hey let's push out the boat & take them both off. Should fix your problem.
     
  12. Anthony121

    Anthony121 Well-Known Member

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    :eek:o_O Power up? Do they have their own power source?
     
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  13. XR WOT

    XR WOT New Member

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    Yes they do. And their own ground. So best take them both both off aye sparky
     
  14. Super Coach

    Super Coach GTS, S, CV8Z, SSVR

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    Is yours a manual? do you have AC on? I notice in mine if I have AC on, the revs might rise a little and then drop whn coming to a stop when AC is on, but dont do it when AC is off.
     
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  15. clappa

    clappa New Member

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    Hi All...So didnt end up disconnecting the battery. and yesterday was the first time that the revs didnt increase as i stopped. So looks like it finally relearnt itself. Finally.
     
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  16. stooge

    stooge Well-Known Member

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    no

    if you do end up deciding to disconnect the battery clappa just take the negative lead off for a while, 10 mins would be enough to to be sure 30 mins cant hurt.
     
  17. Geoff6666

    Geoff6666 Active Member

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    That exact thing happened to mine (L77). It was when I installed the OTR. The MAF was located in a different position. It also showed the check engine light. OBD said running lean bank 1 and bank 2. It would sometimes clear but then would revert back. I think it was trying to learn. After I had it tuned there was never a problem.
     

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