Rough Idle (NOT ICV)

1. Jigs2895 Established Member Joined: Jan 2013 Portsmouth Posts: 1335 1997 Mk1 VTS

   #1 11th November 2013, 17:48

   So I just finished whacking 500miles on my VTR going up to Doncaster and back in one day...
   
   My VTR has never idled very smoothly and I have had problems with the ICV in the past, so that has recently been cleaned. I did try replacing the ICV to get rid of my hunting engine but the car just idled at 2500rpm even after resetting the ECU etc...
   
   They are just short clips please tell me if you need longer clips of the problem occurring
   
   Anyway, after this long trip I have a new idle problem, the idle it erratic and jumping around all over the place, there is a very strange hissing noise developed in the body next to the ICV shown in the video below... The revs sort of build up and up and then drop...
   
2. user_26373 Established Member Joined: Aug 2008 Lancaster Posts: 1532 JP4 AX

   #2 11th November 2013, 18:31

   Did you get an ICV off a VTR? I know on VTS models you have to get one for a VTS. I replaced mine recently a brand new cheap model and it just cut the car out all the time. I think its still your ICV unless you've snapped something somewhere aroundyour inlet causing a leak and erratic idle
3. Jigs2895 Established Member Joined: Jan 2013 Portsmouth Posts: 1335 1997 Mk1 VTS

   #3 11th November 2013, 18:42

   Yes it was off a VTR
4. Jigs2895 Established Member Joined: Jan 2013 Portsmouth Posts: 1335 1997 Mk1 VTS

   #4 11th November 2013, 20:37

   Any other ideas?
5. Pricklep Saxperience Hardcore! Joined: Mar 2008 Posts: 31279 Citroen Saxo VTS, S60 D5

   #5 11th November 2013, 20:48

   Get it plugged in
6. Jigs2895 Established Member Joined: Jan 2013 Portsmouth Posts: 1335 1997 Mk1 VTS

   #6 11th November 2013, 21:33

   It doesn't do it everytime, its just now and again so i'm not sure that plugging it in would bring anything up but ill give it a go!
7. lewismonteith Frequent Poster Joined: Feb 2012 Portsmouth Posts: 568 1992 MX-5 1.6 SE

   #7 11th November 2013, 21:37

   Coolant temp sensor? Just Changed this on mine and it idles perfectly now
   
   
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8. Jigs2895 Established Member Joined: Jan 2013 Portsmouth Posts: 1335 1997 Mk1 VTS

   #8 11th November 2013, 22:04

   Hmm it does idle a little smoother when its cold... So that could be an idea
9. lewismonteith Frequent Poster Joined: Feb 2012 Portsmouth Posts: 568 1992 MX-5 1.6 SE

   #9 11th November 2013, 23:04

   Euro car parts do it for £13, worth a try
   
   
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10. Jigs2895 Established Member Joined: Jan 2013 Portsmouth Posts: 1335 1997 Mk1 VTS

    #10 12th November 2013, 13:14

    Easy to fit?
11. Pricklep Saxperience Hardcore! Joined: Mar 2008 Posts: 31279 Citroen Saxo VTS, S60 D5

    #11 12th November 2013, 13:29

    Yeah easy to change. unplug it, unscrew vice versa
12. Jigs2895 Established Member Joined: Jan 2013 Portsmouth Posts: 1335 1997 Mk1 VTS

    #12 12th November 2013, 13:36

    Where abouts is it located? I'm at work and can't really look around at the moment, if so I'll pick one up on the way home
13. Pricklep Saxperience Hardcore! Joined: Mar 2008 Posts: 31279 Citroen Saxo VTS, S60 D5

    #13 12th November 2013, 14:30

    http://www.saxperience.com/forum/sho...d.php?t=378652
14. axsaxoman Saxperience Forum Bum Joined: Jan 2003 Scotland Posts: 3380

    #14 13th November 2013, 08:31

    slacken the throttle cable voltage at TPS must be less than 0.65v at idle or ICV system will think you are on light throttle and not idle ,so it will not ove .