how do i unlock the ecu on a mk1 vtr?

1. Dan-Subtlem Forum Section Moderator Joined: Aug 2006 Westgate on Sea/Bexley Posts: 17223 Series 1 Rallye

   #1 4th June 2009, 15:35

   how do i do it?
   
   engine runs lovely but im stripping the car and want to know how to unlock the ecu, i have seen the threads about removing the plug from the keypad but the one i have the keypad has been removed and it has a clifford alarm fitted.
   
   how do i unlock it now?
   
   Thanks
   
   Dan
2. Sparco_Tom Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta

   #2 4th June 2009, 20:54

   start the car
   go behind the passenger fuse box reach up and pull a black box down abit bigger that a fag packet.
   
   unplug it with the car running
   
   switch the car off
   
   try starting it again if it does its unlocked and leave the box disconnected
3. AlexR Saxperience Post Whore Joined: Aug 2004 Kunt & Sorrey Posts: 5763 Rep mobiles & Joes ma

   #3 4th June 2009, 21:21

   Make sure the immobiliser light doesn't come on at all when you try and restart it. I've had quite a few people think they've unlocked it when in fact they've removed the wrong box all together lol
4. Sparco_Tom Saxperience Addict Joined: Jan 2007 Aylesbury, Bucks Posts: 12836 Yeaaahh Fiesta

   #4 4th June 2009, 21:29

   thanks alex forgot to mention that
5. Dan-Subtlem Forum Section Moderator Joined: Aug 2006 Westgate on Sea/Bexley Posts: 17223 Series 1 Rallye

   #5 18th June 2009, 17:14

   just bumping this back up as i am removing it tonight, does it make any difference that it has a clifford alarm on it?
6. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

   #6 18th June 2009, 17:18

   shouldnt do
7. jambo_lincs Newbie Joined: Jun 2009 Posts: 12

   #7 18th June 2009, 19:04

   wat does unlocking the ecu do ?
8. gixxa Established Member Joined: Feb 2007 manchester Posts: 1704 vtr turbo

   #8 18th June 2009, 19:12

   it removes the standard imobilizer
9. Olly Saxperience Forum Bum Joined: Dec 2008 Meerkat Harborough Posts: 2638 Saxo vtr mk 2

   #9 18th June 2009, 19:23

   Quote:

   Originally Posted by jambo_lincs wat does unlocking the ecu do ?

   
   Basically removing the box mentioned, stops the ecu from being immobilised when you switch off, which means you can then transfer the euc to another car/use a new ecu on yours without swapping keys etc...
10. mark_saxo_83 Regular Poster Joined: Jan 2009 stockton on tees Posts: 388 mk1 posi blue vtr

    #10 22nd July 2009, 22:53

    Quote:

    Originally Posted by sax-oli Basically removing the box mentioned, stops the ecu from being immobilised when you switch off, which means you can then transfer the euc to another car/use a new ecu on yours without swapping keys etc...

    does this reay work as iv got mk1 vtr engine goin into a pug 106 and i no someone who is braking a mk1 vtr but the engine sti runs so if i do this to there car i will be able to unlock that ecu and use it as an unlocked ecu for my vtr pug 106 conversion
11. user_34821 Infrequent Poster Joined: Jun 2009 burton upon trent Posts: 232 57 C4 Coupe VTR+

    #11 2nd August 2009, 22:53

    my mate has a remapped ecu of a vtr engine and want to get it in my vtr will this work doing the same thing by unplugging the immobiliser its a sreg vtr any help very much appreciated
12. p16let Newbie Joined: Feb 2008 Posts: 18

    #12 12th December 2010, 09:12

    does any one know anyone who unlocks ecu's cheap
13. bengtt5 Regular Poster Joined: Oct 2010 bournemouth Posts: 272 ph2 clio 172

    #13 12th December 2010, 10:16

    Quote:

    Originally Posted by mikey1 my mate has a remapped ecu of a vtr engine and want to get it in my vtr will this work doing the same thing by unplugging the immobiliser its a sreg vtr any help very much appreciated

    Yes it will
14. devilsadvocate Saxperience Post Whore Joined: Dec 2006 Maidstone Posts: 8210 Golf TDI

    #14 12th December 2010, 10:18

    A year old bump much
15. bengtt5 Regular Poster Joined: Oct 2010 bournemouth Posts: 272 ph2 clio 172

    #15 12th December 2010, 10:27

    Well it wasn't me
16. kurenadvore Newbie Joined: Apr 2009 Posts: 24

    #16 22nd February 2011, 07:14

    when this thread is alive again, i just want small advice.
    when we unplug keyboard on started engine and turn it off and remove an ECU, does it still remani unlocked?
    
    if so, and we try this ECU on another car and we we´ll want to put it back into its original place/car, how can we enable imobilliser agian. if we cant, that is not so big deal, but myfriend is afraid of, that he will need to put some genuine code, which he doesnt have at all. he third owner, car is 10 years old, so there is no chance to find out any code in this case...
    
    is he afraid of this rightly?
17. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #17 23rd February 2011, 17:44

    plugging the keypad back in will re-arm the immobliser.
    
    The keypad must be the one that came with the orginal ecu and you must have the 4 digit code or you will be unable to start the car without sending it off to be unlocked.
18. johnbarker Newbie Joined: Mar 2011 Posts: 3

    #18 3rd March 2011, 23:35

    any one got an unlocked ecu for a saxo vtr 1999 single plug myn does not have the key pad just the chip in the key so need an unlocked ecu for it thanks
19. johnbarker Newbie Joined: Mar 2011 Posts: 3

    #19 3rd March 2011, 23:37

    or any one who can unlock my ecu cause it wont start and the imobiliser light keeps flashing
20. K1zza Infrequent Poster Joined: Nov 2010 Chatham, Kent Posts: 248

    #20 17th May 2011, 14:23

    Silly question maybe, but is it the same process for a Mk2 vtr? 3 plug.
21. user_32315 Saxperience Post Whore Joined: Mar 2009 Uppingham, Rutland Posts: 9569 mk1 JP4'd VTR, '16 Fabia Monte Carlo

    #21 17th May 2011, 15:38

    Quote:

    Originally Posted by K1zza Silly question maybe, but is it the same process for a Mk2 vtr? 3 plug.

    yes exactly the same, just pull out the immobiliser with engine running
22. user_40378 Regular Poster Joined: Jan 2010 Derby Posts: 258 Saxo VTR 2001

    #22 7th June 2014, 20:54

    Realise this an old thread but my MK2 Vtr isnt starting because of the immobiliser, if i pull it out will i still be able to start the car?? or does the engine have to be running in order to unlock the ecu?
    
    Cheers
23. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

    #23 7th June 2014, 21:52

    It has to be running. If it's locked already then it won't start either way
    
    
    Sent from my iPhone using Tapatalk

    1 user thanked this post: user_40378