VTR 3 plug to JP4S single plug

1. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #1 7th November 2011, 18:46

   Going to be fitting one of these jp4s engine to my vtr.
   
   I've read that ryanMt (sp) on here doe's loom splicing so that I can use the single plug ecu on my 3 plug loom.
   
   What else will I need to source? Will the connectors on my 3 plug loom fit the newer jp4s engine/sensors?
   
   Just want to make sure i've got everything so it can all be done in the same day.
   
   Also will i need a fuel return as im going 8v to 16v? All confusing stuff, as it's the first engine swap.
2. user_51379 Saxperience Forum Bum Joined: Mar 2011 plymouth Posts: 2921 mk2 VTS

   #2 7th November 2011, 18:48

   crossover loom from a w reg vts mate
3. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #3 7th November 2011, 18:51

   ahh, why what do I need off that loom? And will that be all i'd need to get it running?
   
   Full loom swap?? or do they splice them together?
   
   Confused lol!
4. user_51379 Saxperience Forum Bum Joined: Mar 2011 plymouth Posts: 2921 mk2 VTS

   #4 7th November 2011, 18:53

   full loom swap mate
   eg. w reg mk2 sxo vts is single plug ecu
   
   maybe a few sensors on engine will need changing
5. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #5 7th November 2011, 19:39

   Ok Thanks for advice!
   
   I see the crossover loom is sought for, so is hard to come across.
   
   Could i just change the entire loom? Considering my car's stripped anyway, would probably be less hassle than finding a crossover loom?
   
   Or is that a really hard job lol?
6. user_51379 Saxperience Forum Bum Joined: Mar 2011 plymouth Posts: 2921 mk2 VTS

   #6 8th November 2011, 19:08

   find out what interior plug your car has mate is it a 2 pin one
7. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #7 8th November 2011, 19:44

   I'll have a look tomorrow in the light
8. tarzan Frequent Poster Joined: Apr 2010 Lurgan Posts: 767 2001 black saxo furio 2001 black saxo vts

   #8 8th November 2011, 20:11

   Quote:

   Originally Posted by sam_8v find out what interior plug your car has mate is it a 2 pin one

   what do you mean by two pin?
9. user_51379 Saxperience Forum Bum Joined: Mar 2011 plymouth Posts: 2921 mk2 VTS

   #9 8th November 2011, 21:21

   Quote:

   Originally Posted by tarzan what do you mean by two pin?

   my mk1 has a two pin connector that connects engine loom to interior loom
10. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #10 13th November 2011, 10:53

    Quote:

    Originally Posted by sam_8v full loom swap mate eg. w reg mk2 sxo vts is single plug ecu maybe a few sensors on engine will need changing

    The crossover loom and the 3 plug have the same connector but they do not interchange! Fitting one means half the car wont work.
    
    If you did want to go that route you would have to swap the dash loom aswell.
11. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

    #11 13th November 2011, 23:56

    Think the easiest option is to sell my single plug ecu, and buy a 2002 vts loom and 3 plug ecu.. and change a few sensors if the connectors don't match up.
    
    That should work right?
12. Tom5190 Saxperience Post Whore Joined: Sep 2007 Someones Bumhole Posts: 5721 Mk2 16v Desire

    #12 14th November 2011, 00:04

    All you need to do is have the loom and ecu off the engine you have bought, and it will splice into the Mk2 loom. Ive done it i no it works.
    
    Other option is as you said, buy a MK2 3 plug loom and ecu and swap some plugs about possibly
13. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #13 14th November 2011, 11:33

    Quote:

    Originally Posted by saxova Think the easiest option is to sell my single plug ecu, and buy a 2002 vts loom and 3 plug ecu.. and change a few sensors if the connectors don't match up. That should work right?

    Yes that works fine, make sure you get the coilpack and injector loom from the 3 plug along with the sensors.
    
    Theres a chance you will need to change the alternator depending on year aswell.
14. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

    #14 14th November 2011, 17:34

    Quote:

    Originally Posted by ryanmt Yes that works fine, make sure you get the coilpack and injector loom from the 3 plug along with the sensors. Theres a chance you will need to change the alternator depending on year aswell.

    Cheers for info!
    
    Coilpack is brand new though, so rather change the connector if possible! If not, ill sell and buy a 3plug one.
    
    And the alternator uses the washer/bolt type.. and 2002 use a 2pin plug, but i converted the one in the car atm, so I know i'll be able to do that on this one aswell!
    
    Whilst you've commented, you got a 3 plug ecu+loom lying around?
15. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

    #15 14th November 2011, 17:37

    Quote:

    Originally Posted by Tom5190 All you need to do is have the loom and ecu off the engine you have bought, and it will splice into the Mk2 loom. Ive done it i no it works. Other option is as you said, buy a MK2 3 plug loom and ecu and swap some plugs about possibly

    
    Ta for input, but it came from a C2 VTS (JP4S) and altered to run single plug Saxo VTS management..
    
    And the shell is a 3plug, so need to find a 2002 VTS 3 plug loom.. so it's plug and play, and i don't have to send the loom off to be spliced
16. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #16 14th November 2011, 17:50

    Quote:

    Originally Posted by saxova Cheers for info! Coilpack is brand new though, so rather change the connector if possible! If not, ill sell and buy a 3plug one. And the alternator uses the washer/bolt type.. and 2002 use a 2pin plug, but i converted the one in the car atm, so I know i'll be able to do that on this one aswell! Whilst you've commented, you got a 3 plug ecu+loom lying around?

    The ecu reads off the alt so converting it isnt ideal. And you cannot upgrqde the coilpack only downgrade from 3 plug to single
17. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

    #17 14th November 2011, 18:52

    Ahh okay, well I haven't had any problems with my alternator since I did it a year ago, so i'll just risk it. If it cause's any problems, i'll swap them over! Ta for the heads up though!
    
    I'll just sell/swap the coilpack then!
    
    Can you unlock 3-plug ecu's yet mate?
18. ryanmt Established Member Joined: Oct 2004 Warrington Posts: 1987 AX VTS 57 3.0 TDI A5

    #18 17th November 2011, 19:42

    Quote:

    Originally Posted by saxova Ahh okay, well I haven't had any problems with my alternator since I did it a year ago, so i'll just risk it. If it cause's any problems, i'll swap them over! Ta for the heads up though! I'll just sell/swap the coilpack then! Can you unlock 3-plug ecu's yet mate?

    The single plug doesnt take into account the alt, the 3 plug does. Im not sure to what extent though so it might just work fine.
    
    No fraid not
19. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

    #19 17th November 2011, 19:44

    Ahhh okay! look's like ill go with ECUREPAIR for £65.
    
    unless hopefully I find a unlocked ecu+loom for sale!