Revs take ages to drop

  1. Saxperience Forum Bum Joined: Sep 2010 Kent Posts: 4908 Posi VTR, Eunos Roadster
    #1
    As above, when i rev the car, the revs take agesssss to drop, when they should be alot quicker.

    Also when i first start the car and drive it off, then stop at the top of the road, the revs will sometimes stick at around 1800, then slowly drop.

    If i put the car in neutral and take my foot off the clutch when the revs are sticking, the revs drop back to idling.

    Any ideas what this could be.. somebody mentioned it could be an air leak in my induction? Would like to get it sorted as its really bugging me.

    Cheers.
  2. Saxperience Forum Bum Joined: Mar 2011 plymouth Posts: 2921 mk2 VTS
    #2
    it could be idle control valve or tps or a sticking throttle cable
  3. Saxperience Forum Bum Joined: Sep 2010 Kent Posts: 4908 Posi VTR, Eunos Roadster
    #3
    Dont think its idle control valve, deffinately not a sticky cable. Whats a tps?
  4. Infrequent Poster Joined: Jul 2011 Posts: 183
    #4
    A tps is a throttle position sensor mate, have you checked the throttle body isn't full of dirt and grime and getting stuck?
  5. Saxperience Forum Bum Joined: Sep 2010 Kent Posts: 4908 Posi VTR, Eunos Roadster
    #5
    Quote:
    Originally Posted by kirk View Post
    A tps is a throttle position sensor mate, have you checked the throttle body isn't full of dirt and grime and getting stuck?
    Ahh okay cheers mate, and nope i haven't really checked anything yet, will give it all a good clean through soon and see how it helps
  6. Established Member Joined: Jun 2011 Pontefract Posts: 1095 Nissan 200sx s14a Citroen Saxo VTS Austin Mini C
    #6
    Was doing it on a friends gti, just give all throttle body a clean as said and it should sort it out, i just removed it and gave it all a clean out with brake cleaner and a tooth brush for any thick deposits
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  7. Saxperience Forum Bum Joined: Sep 2010 Kent Posts: 4908 Posi VTR, Eunos Roadster
    #7
    Quote:
    Originally Posted by Liamjrhodes View Post
    Was doing it on a friends gti, just give all throttle body a clean as said and it should sort it out, i just removed it and gave it all a clean out with brake cleaner and a tooth brush for any thick deposits
    cool cool, cheers for the help
  8. Frequent Poster Joined: Mar 2012 Derbyshire Posts: 770
    #8
    Mine does it every time i take the battery off, its sounds like idle controll vavle, normaly sorts itself out after a bit of check your breather pipes for leaks ( the long one from the idle controll vavle to the air box
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