wont rev over 3000rpm

1. mongo Newbie Joined: Nov 2010 Posts: 5

   #1 28th November 2010, 16:46

   A few days ago the engine management light came on my mk2 saxo and since then the car runs fine until it gets to 3000 rpm and then it just shudders loads and wont rev any higher, is it probably just a dodgy sensor?
2. JoeExpose Regular Poster Joined: Aug 2009 Wirral Posts: 383 Saxo 2001 VTR 98 bhp

   #2 28th November 2010, 16:50

   check fuel injectors?
3. ct7331 Infrequent Poster Joined: Sep 2009 Solihull Posts: 143 MK2 Saxo VTR Breaking

   #3 28th November 2010, 18:20

   get the code read
   
   check fuel filter, pump etc.. sounds fuel related
4. user_31412 Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653

   #4 28th November 2010, 19:21

   Crank sensor.
5. adam19 Saxperience Forum Bum Joined: Jun 2008 Harlow, essex Posts: 2731 Clio 182

   #5 29th November 2010, 15:34

   i reckon crank sensor as mentioned
6. user_38486 Saxperience Forum Bum Joined: Oct 2009 Blackburn Posts: 4739 A few

   #6 29th November 2010, 15:38

   Crank sensor is most likely mate
   Happened to Catty a few days ago ill find the link
   
   Here you go mate, practically same as you http://www.saxperience.com/forum/sho...d.php?t=348727
   
   no codes appear but its 99% of the time a crank sensor, few of my mates have had it
7. MunkyBoy Established Member Joined: Nov 2009 Maldon Posts: 2033 1. MK2 Chalked VT'd 1.1 2. MK1 VTS

   #7 29th November 2010, 15:39

   Crank sensor, and the make sure you reset the ECU to take it out of limp mode.
8. mongo Newbie Joined: Nov 2010 Posts: 5

   #8 29th November 2010, 20:35

   thanks for the info guys i've ordered a crank sensor, to reset the ecu i just unplug the battery for half hour, that right?
9. user_31412 Established Member Joined: Feb 2009 ★ West / North Yorkshire ★ Posts: 1653

   #9 29th November 2010, 20:44

   Yep, that should do it.
10. DansexysaxoVTS Regular Poster Joined: Oct 2009 Ipswich Suffolk Posts: 355 saxo vts

    #10 29th November 2010, 22:15

    I had this on a renault laguna at work and it was the fuel pressure regulator i would get it code read if you dont get no where with replacing the crank sensor
11. user_27114 Saxperience Forum Bum Joined: Sep 2008 jarraaaaaaaaaa Posts: 3580 Mk2 16v VTR + Nitrous

    #11 29th November 2010, 22:21

    where can I get a crank sensor from? That I know will work (not scrappys or anythin)
12. user_27114 Saxperience Forum Bum Joined: Sep 2008 jarraaaaaaaaaa Posts: 3580 Mk2 16v VTR + Nitrous

    #12 29th November 2010, 22:23

    Just ebayed it. Hopefully it will work.
13. mongo Newbie Joined: Nov 2010 Posts: 5

    #13 1st December 2010, 17:53

    eurocarparts do them for 11 quid new
14. user_27114 Saxperience Forum Bum Joined: Sep 2008 jarraaaaaaaaaa Posts: 3580 Mk2 16v VTR + Nitrous

    #14 2nd December 2010, 00:18

    doh...
15. mongo Newbie Joined: Nov 2010 Posts: 5

    #15 2nd December 2010, 16:20

    well i changed the crank sensor but it didn't fix the problem so i took it for a diagnostics today at a garage and he said that the throttle valves are knackered, anyone else had this problem?
16. user_27114 Saxperience Forum Bum Joined: Sep 2008 jarraaaaaaaaaa Posts: 3580 Mk2 16v VTR + Nitrous

    #16 3rd December 2010, 09:29

    Quote:

    Originally Posted by mongo well i changed the crank sensor but it didn't fix the problem so i took it for a diagnostics today at a garage and he said that the throttle valves are knackered, anyone else had this problem?

    Great. Thought that it might be too good to be true. Throttle valves? The actual valves in your head are knackered?
17. mongo Newbie Joined: Nov 2010 Posts: 5

    #17 3rd December 2010, 18:01

    no not the valves in the head, he pointed at the throttle body bit and said its knackered but he called them throttle valves