Idle trouble on cold start

1. tomsmarty Established Member Joined: Apr 2010 Somerset Posts: 1746 Seat Leon Cupra R, Fourtrak offroader

   #1 10th February 2012, 17:56

   When cold it struggles to start without a bit of throttle, when it does get going I have to hold the revs up or it will cut out. Has only really been doing this since I had the headgasket done. So far iv changed the throttle body and checked for splits etc in the tubing. Think it might be the ICV?
2. mlawlan69 Saxperience Forum Bum Joined: Sep 2010 leeds Posts: 4389 MCS R53 S/C 16v furiooo

   #2 10th February 2012, 18:02

   mine did this too yesterday
   
   reversing out of a driveway it stalled twice, sounded really rough and sluggish.
   
   once i was out though it was fine going forward, which is strange, it only does it in reverse!!
3. SI80 Regular Poster Joined: Jul 2011 NW Posts: 284 2001 saxo vtr silver/1999 1.1 eastcost

   #3 10th February 2012, 18:05

   Quote:

   Originally Posted by tomsmarty When cold it struggles to start without a bit of throttle, when it does get going I have to hold the revs up or it will cut out. Has only really been doing this since I had the headgasket done. So far iv changed the throttle body and checked for splits etc in the tubing. Think it might be the ICV?

   You could try and take the icv off and giv it a clean it wont hurt? my saxo was doing this and also reving up and down on its own so i just got a new icv off ebay fitted it and its been spoton ever since.
4. tomsmarty Established Member Joined: Apr 2010 Somerset Posts: 1746 Seat Leon Cupra R, Fourtrak offroader

   #4 10th February 2012, 18:08

   Quote:

   Originally Posted by mlawlan69 mine did this too yesterday reversing out of a driveway it stalled twice, sounded really rough and sluggish. once i was out though it was fine going forward, which is strange, it only does it in reverse!!

   When the revs drop it sounds so ruff, starts knocking sounding like its going to die. Quite embarressing lol
   
   

   Quote:

   Originally Posted by SI80 You could try and take the icv off and giv it a clean it wont hurt? my saxo was doing this and also reving up and down on its own so i just got a new icv off ebay fitted it and its been spoton ever since.

   Yeah il give it a clean tomorrow if its not too cold. Hopefully it is only the ICV and nothing else.
5. SI80 Regular Poster Joined: Jul 2011 NW Posts: 284 2001 saxo vtr silver/1999 1.1 eastcost

   #5 10th February 2012, 18:16

   Thats what mine was pal and £20 0ff ebay as well.
6. user_46658 Saxperience Post Whore Joined: Aug 2010 Little Mill, South Wales Posts: 7547 Mondeo ST TDCI Saxo VTS

   #6 10th February 2012, 18:33

   same problem here, think its worth looking at the temp sensor aswell
7. tomsmarty Established Member Joined: Apr 2010 Somerset Posts: 1746 Seat Leon Cupra R, Fourtrak offroader

   #7 10th February 2012, 18:44

   Quote:

   Originally Posted by Brettles1986 same problem here, think its worth looking at the temp sensor aswell

   Seems to be pretty common. Wheres the temp sensor too?
8. f13sta Established Member Joined: Sep 2010 loughborough Posts: 2229 1988 ford fiesta mk2 1.4- 2001 black saxo furio (d

   #8 10th February 2012, 18:48

   check the resistance readings of the temp sensor. more pronounced if it is cold (i.e engine) as the ecu uses reading from this to determin the warm up proccedure. this is calld a closed circuit. ( i'm not being patronising btw )
   
   is it ok once it's warmed up?
9. tomsmarty Established Member Joined: Apr 2010 Somerset Posts: 1746 Seat Leon Cupra R, Fourtrak offroader

   #9 10th February 2012, 18:52

   Quote:

   Originally Posted by f13sta check the resistance readings of the temp sensor. more pronounced if it is cold (i.e engine) as the ecu uses reading from this to determin the warm up proccedure. this is calld a closed circuit. ( i'm not being patronising btw ) is it ok once it's warmed up?

   How do I check the readings? Didn't find it patronising at all, glad you explained it so I can understand haha
   
   Yeah its fine once its warmed up. Sometimes it will start fine first time, others it will start up like a tractor or like an old vw beetle if you know what im on about?
10. f13sta Established Member Joined: Sep 2010 loughborough Posts: 2229 1988 ford fiesta mk2 1.4- 2001 black saxo furio (d

    #10 10th February 2012, 18:56

    Quote:

    Originally Posted by tomsmarty How do I check the readings? Didn't find it patronising at all, glad you explained it so I can understand haha Yeah its fine once its warmed up. Sometimes it will start fine first time, others it will start up like a tractor or like an old vw beetle if you know what im on about?

    do you have a multimeter? with a ohms setting (looks like a horse shoe)
    
    whip the plug off for the temp sensor and use the two probes of the multimeter touch them to the prongs in the temp sensor.
    
    i'll see if i can find the readings,
11. tomsmarty Established Member Joined: Apr 2010 Somerset Posts: 1746 Seat Leon Cupra R, Fourtrak offroader

    #11 10th February 2012, 19:06

    Quote:

    Originally Posted by f13sta do you have a multimeter? with a ohms setting (looks like a horse shoe) whip the plug off for the temp sensor and use the two probes of the multimeter touch them to the prongs in the temp sensor. i'll see if i can find the readings,

    No I havent but il get one tomorrow lol If you could find them out would be great