Important! : vts problems

1. matt_wolves Regular Poster Joined: Apr 2010 Braunton Posts: 330 BLACK SAXO VT?

   #1 16th March 2011, 22:12

   well i went to go out in my car today and it struggled to turn on i needed to give it some throttle and then when it was on it was really lumpy idle. i drove it up the road and if i was bracking and the went from 3rd gear to 2nd it would drop the revs really quick and cut out and i would need to start the car again??? if im in any gear and put my foot down if im under 3000 revs it struggles to move and the engine misfires alot then as soon as it hits above 3000 revs it goes like normal??
   
   ive tried 2 different idle control valves
   ive got a new coilpack
   ive tried to starter motors
   ive tried 2 sets of spark plugs (they both go really black on the bottom like charcoal).
   
   someone please help me im so confussed??
   
   cheers matt
2. user_36198 Saxperience Post Whore Joined: Aug 2009 ilkeston derbyshire Posts: 9823 C2 VTR stripped, 406hdi, clio 172

   #2 16th March 2011, 22:18

   get a compression test done first of all, i've had a few 16V's that have blown the head gasket between 2 cylinders and have only revved normally when they are getting some revs on. Won't display any other signs of HG failure though as they usually go between 2 centre cylinders and don't get the oil/water mixing problem or overheating
3. matt_wolves Regular Poster Joined: Apr 2010 Braunton Posts: 330 BLACK SAXO VT?

   #3 17th March 2011, 08:01

   anyone else ??
4. user_50259 Infrequent Poster Joined: Jan 2011 Posts: 206 VTS mk2

   #4 17th March 2011, 08:22

   Clean the throttle body
5. matt_wolves Regular Poster Joined: Apr 2010 Braunton Posts: 330 BLACK SAXO VT?

   #5 17th March 2011, 08:39

   i have done that
6. LeeM Saxperience Post Whore Joined: Feb 2008 Liverpool Posts: 7393 Black Corsa C SRi

   #6 17th March 2011, 08:52

   First step is a compression test
7. user_35014 Established Member Joined: Jun 2009 Helensburgh Posts: 1206 Cammed Ph2 VTS

   #7 17th March 2011, 10:09

   Could be a blocked cat.
   
   If it sounds like its struggling to run on, it could be running on three cylinders. You could try and pull the coilpack out along with all of the plugs, and sit them on the rocker cover.
   
   Get someone to try and turn the engine over and make sure all of the plugs are firing, but dont touch them unless you like being electrocuted.
   
   Also check your air filter isnt blocked.
8. kyle4256 Established Member Joined: Feb 2008 dundee Posts: 1844 saxo vts

   #8 17th March 2011, 16:46

   first get a compression test, second buy i genuine idle control valve from citroen and install it properly (thats the problem i had it died when u dipped the clutch to change gear and this cured it)