Really high idling (not a Saxo)

1. saxo_singh Saxperience Forum Bum Joined: May 2009 Birmingham Posts: 4289 02 VTR'd Furio, 07 Audi A4 Avant S Line

   #1 28th March 2011, 23:31

   car: Pug 206 1.4 8v (same engine as furio)
   
   got a problem with the idling, when i start the car up it revs upto 3k for a few seconds then drops do 1500rpm, it will then bouce down to around 7/800rpm and back to 1500rpm in a continous pattern. when your driving it shoots to 7000rpm and just revs up and down between 7/800rpm and 1500rpm.
   
   ive never come across anything like before!
   
   ive cleaned the throttle body out and cleaned up the idle control valve but still nothing.
   
   
   
   any one have any suggestions? or come across this before?
   
   any help is appreciated
2. saxo_singh Saxperience Forum Bum Joined: May 2009 Birmingham Posts: 4289 02 VTR'd Furio, 07 Audi A4 Avant S Line

   #2 29th March 2011, 15:36

   bump.....
3. user_51379 Saxperience Forum Bum Joined: Mar 2011 plymouth Posts: 2921 mk2 VTS

   #3 29th March 2011, 15:37

   could be throttle cable mate
4. carlsmith715 Established Member Joined: Nov 2010 manchester Posts: 2099 2000 1.6 furio

   #4 29th March 2011, 15:49

   if it got icv check that
5. Oc2 Frequent Poster Joined: Apr 2010 Nottm. Posts: 924 Focus ST2 ASBO

   #5 29th March 2011, 15:53

   Quote:

   Originally Posted by saxo_singh ive cleaned the throttle body out and cleaned up the idle control valve but still nothing.

   Quote:

   Originally Posted by carlsmith715 if it got icv check that

   
   Had similar on my saxo mate, ive had new ICV and TB, cleaned both old and new, then narrowed it down to:
   
   Air leak around ICV
   Lambda on the way out
   ICV stepper motor<---probable
   
   but out of no where mine stopped and hasnt for ages now *touches wood*
6. saxo_singh Saxperience Forum Bum Joined: May 2009 Birmingham Posts: 4289 02 VTR'd Furio, 07 Audi A4 Avant S Line

   #6 29th March 2011, 18:51

   I cleaned the icv, throttle cable it wudnt be that as its revving up and down by itself. Sounds like its sucking a lot of air in from somewere to? Going to try my stepper rmotor frm my 1.4 8v see if it makes a difference.
   
   Thanks for your help guys!