Idle problem. Read it before you say use the search button.

1. tomnelson Frequent Poster Joined: Dec 2010 coalville Posts: 711 project flat arch

   #1 21st May 2012, 21:36

   Right I have a 2002 vtr 3 plug. Every now and again when idling the revs drop to 500 rpm the go upto 1000 rpm. Does not go it all the time. Mainly when up to temp and been idling for a while. I've change all sensors on inlet manifold, also changed inlet manifold gaskets, also changed lamda sensors. And have had the alternator check and it's fine. So finally I plugged it in at work but know fault codes or problems have came up. Any ideas ?
2. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #2 21st May 2012, 22:03

   Possibly your coil pack is breaking down,which often shows itself when the car has warmed up.
3. Barry123 Saxperience Hardcore! Joined: Oct 2005 Aycliffe Posts: 32205 Saxo VTS

   #3 21st May 2012, 22:05

   and the idle control valve???
4. tomnelson Frequent Poster Joined: Dec 2010 coalville Posts: 711 project flat arch

   #4 21st May 2012, 22:24

   I was thinking that but surely it would do it more often than just idling ? Changed icv.
5. user_31412 Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653

   #5 21st May 2012, 22:42

   ECU coolant temp sensor?
6. wezzasaxo1 Regular Poster Joined: Dec 2010 aylesbury Posts: 385 cammed vtr 16v sold now mk4 astra gsi turbo

   #6 22nd May 2012, 07:52

   Icv maybe my saxo had same problem then I sold ot best move
7. tomnelson Frequent Poster Joined: Dec 2010 coalville Posts: 711 project flat arch

   #7 22nd May 2012, 17:57

   Read above , changed icv. Erm I've changed 2 coolant temp sensors near the thermostat. Is there another one ?
8. RustySkull Saxperience Post Whore Joined: Oct 2009 Basildon And Corringham, Essex Posts: 5179 MK1 Focus RS, Discovery TD5, Renault Trafic 2.0

   #8 22nd May 2012, 18:05

   You've changed everything, either the new ICV is faulty also or it has a bad connection, I say check that again and clean it
9. bridgey1234 Frequent Poster Joined: Nov 2010 glasgow Posts: 583 citroen saxo vts 1998 Citroen saxo furio 03 c2 gt

   #9 22nd May 2012, 18:24

   yeh give it a clean it could be your coil back best bet is to take it to a garage and get a diagnostics plugged in
10. Mike_Roberts Infrequent Poster Joined: Dec 2009 Oswestry / Lyneham Posts: 180 1993 106 XSI 1.4 miami 2005 Fiesta mk6

    #10 22nd May 2012, 18:33

    Give your map sensor a clean. I had the same problem and found some bodged wiring to the MAP. Re-terminated them and it's been perfect since!
11. RustySkull Saxperience Post Whore Joined: Oct 2009 Basildon And Corringham, Essex Posts: 5179 MK1 Focus RS, Discovery TD5, Renault Trafic 2.0

    #11 22nd May 2012, 18:33

    Quote:

    Originally Posted by bridgey1234 yeh give it a clean it could be your coil back best bet is to take it to a garage and get a diagnostics plugged in

    He's already plugged it in, an idle problem like he says won't bring any codes up.
    
    It's not a bad thing, I'd leave it as you said it only does it every now and then...
12. chinkostu Saxperience Post Whore Joined: Aug 2008 The wrong carpark Posts: 5152 Xantia 1.9TD

    #12 23rd May 2012, 03:12

    Quote:

    Originally Posted by Mike_Roberts Give your map sensor a clean. I had the same problem and found some bodged wiring to the MAP. Re-terminated them and it's been perfect since!

    My map was black with oil. Bloody horrible to drive before i got around to cleaning it and noticing just how dirty it was!