Car carries on revving when I touch the throttle - unkinown sensor ???

1. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

   #1 28th August 2013, 09:58

   The engine carries on revving when I touch the throttle and does not stop - this happens all the time.
   
   I searched the forums here and there is a lot of mention of a possible problem with the Idle control valve?
   
   Now I have 2 Saxo's , a manual and a auto, the auto has the revving problem.
   
   I can find the Idle control valve fine on the manual car but not on the auto. I have found a sensor where the ICV should be and you can see it in the attached picture. It looks burnt out but has no part number on it just 'BR02'
   
   The Auto is a MK II 1.6 ltr SX Auto 1997
   
   Anyone know what it is and if it could cause the revving?
   
   Cheers
   
   Kurtis
   
   
2. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

   #2 28th August 2013, 11:16

   Someones just told me it could be a 'carbaretta reheating unit ' and I dont think that would be the problem
3. Bedford126 Saxperience Post Whore Joined: Jul 2010 Morley, Leeds Posts: 8469 Civic ep3 type r powered by TDI NORTH

   #3 28th August 2013, 11:22

   Quote:

   Originally Posted by kingkurt Someones just told me it could be a 'carbaretta reheating unit ' and I dont think that would be the problem

   On a fuel injected engine??? Lol.
   
   The problem will be your idle control valve clean it or replace it.
4. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

   #4 28th August 2013, 11:38

   So I just got the official diagram from the Citroen dealership and it is a Carbarettor reheating unit but more importantly I have also found where the Idle compensator or the 'Air Control Valve Stepper Motor' is - bolted under the bloody manifold!!
   
   So im guessing I should go for a replacement from everything I have read on the forums here
5. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

   #5 28th August 2013, 11:40

   Quote:

   Originally Posted by Bedford126 On a fuel injected engine??? Lol. The problem will be your idle control valve clean it or replace it.

   So I can just try cleaning it?
6. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

   #6 28th August 2013, 11:46

   check voltage at tps --if more than 0.6v --your cable is too tight or t/body needs closing by the little adjuster ,or tps is faulty --first thing to check
7. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

   #7 28th August 2013, 13:17

   Quote:

   Originally Posted by axsaxoman check voltage at tps --if more than 0.6v --your cable is too tight or t/body needs closing by the little adjuster ,or tps is faulty --first thing to check

   Sorry but Im not a mechanic so I really dont understand what the tps is - I got the unit off now but not sure how to clean it as its sealed
8. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

   #8 28th August 2013, 13:20

   its the same as this
   
   
9. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

   #9 28th August 2013, 14:41

   Well it was black inside and nothing moved so I cleaned it with WD and now its clean and moves freely inside so I will give that a try (after it has dried)
10. L33h Saxperience Post Whore Joined: Oct 2007 North-east - Washington Posts: 7311 Clio 182, Fireblade GSX-R 750

    #10 28th August 2013, 14:43

    Try cleaning the throttle body
11. kingkurt L-plater Joined: Mar 2009 Maidstone Posts: 72 2001 Citreon Saxo - 1.1 ltr Desire

    #11 28th August 2013, 16:51

    runs like a dream now
12. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #12 28th August 2013, 19:56

    Quote:

    Originally Posted by kingkurt runs like a dream now

    Just for ref,the unit in your pic is called an idle actuator control valve,not an icv & performs the same function.
13. user_7 Frequent Poster Joined: Dec 2002 United Kingdom Posts: 700 Mk6 Golf GTD Saxo VTS Project Rally Car

    #13 29th August 2013, 21:18

    Quote:

    Originally Posted by kingkurt Sorry but Im not a mechanic so I really dont understand what the tps is - I got the unit off now but not sure how to clean it as its sealed

    Throttle Position Sensor (I think)
14. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #14 30th August 2013, 19:02

    Quote:

    Originally Posted by SGregg Throttle Position Sensor (I think)

    Thats right mate,on the back of the throttle body & very expensive to renew on these because they`re a different design,£176.00 I was quoted for new one.
15. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

    #15 31st August 2013, 14:40

    that will be complete t/body as well
16. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #16 1st September 2013, 14:01

    Quote:

    Originally Posted by axsaxoman that will be complete t/body as well

    Nope thats just for the sensor,thats the price I was quoted.
17. mad73 Newbie Joined: Aug 2013 cheshunt , herts Posts: 16 1.8 zetec escort van

    #17 4th September 2013, 22:22

    mine does some thing like that as well , mine stalls a lot and if u try to keep it running by holding at say 2k rpm it revs up and down on its own, mine is a 1.1sxi mk1 would this be the icv playing up , would it just need a clean or a new 1, any 1 else had the same prob