VTS wont start when hot

1. DannyVTS Established Member Joined: Apr 2010 Pontefract Posts: 2177

   #1 26th May 2012, 12:33

   Hi all. Posting this for a friend
   
   His VTS will start fine in the morning when it's cold, but if he tries to start it warm it won't start
   
   Now i remember he jet washed the engine bay last week, so alarm bells were ringing towards the coil pack as I remember reading some of you had done the same thing, but we got that off today and there was no sign of any water damage (would there be?)
   
   My second thought was coolant temp sensor but when the car does run, the idle is very rough and the engine speed varies quite a lot, which takes us to the idle control valve?
   
   Can they be cleaned up etc?
   
   Any advice would be appreciated
   
   Dan
   
   
   Sent from my iPhone using Tapatalk
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 26th May 2012, 19:24

   A knackered coil pack shows these symptoms when the engine is hot mate.
3. DanTvts Established Member Joined: Mar 2011 Torbay Posts: 1285 Mauritius Vts, 206 Gti 180

   #3 26th May 2012, 20:27

   Also just to add, a knackered coolant temp sensor can also give a dodgy idle, so you might be right in suspecting that also.
4. DannyVTS Established Member Joined: Apr 2010 Pontefract Posts: 2177

   #4 28th May 2012, 08:08

   Twas the coolant temp sensor, runs fine unplugged!