Megasquirt Wiring Guide

1. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

   #1 29th May 2009, 21:18

   someone help me to make a conversion?
   my car ECU Magneti Marelli 48P2.80
   
   was to see a site that explains and but for other type of ecu
   http://www.xsir.co.uk/forum/viewtopic.php?f=20&t=68
   
   thanks
2. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

   #2 29th May 2009, 22:25

   I forget off hand what ECU came off what engine as not worked on these for a long time. But its easy enough to just work back with a multi meter.
3. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

   #3 30th May 2009, 16:54

   sorry but do not understand what you mean
4. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

   #4 30th May 2009, 21:38

   help me please
5. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

   #5 30th May 2009, 21:44

   To work out what wire is what you can just use a multi meter. Then its just trial and error to track down what wire in to the plug is what. I have also use a light bulb and battery when I did not have multi meter to hand.
6. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

   #6 30th May 2009, 21:50

   but it will be very difficult to find .. do not try any scheme?
7. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

   #7 30th May 2009, 22:07

   No its the easy part. You just unplug the it item your looking for then use the mete to identify the wire at the other end.
8. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

   #8 30th May 2009, 22:24

   if any scheme was easier
   thus will be very difficult
9. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

   #9 30th May 2009, 22:25

   where you get a diagram?
10. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

    #10 31st May 2009, 12:38

    yet no one built a megasquirt 3 plug?
11. RJE Infrequent Poster Joined: May 2009 Croydon Posts: 144 SAXO VTS :),VW GOLF MK4, PUNTO HGT

    #11 31st May 2009, 13:07

    yep vvvvv
12. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

    #12 31st May 2009, 20:34

    nobody helps me to go for this to work?
13. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

    #13 31st May 2009, 20:52

    What part are you stuck on? Is the ECU working ok? Can you get it to recognise the sensors ok? Does it spark and fuel at all? Where are you from? if your local I can coem have a look for you.
14. raunchz Saxperience Addict Joined: Jul 2005 Solihull / Bournemouth Posts: 14233 2015 Lapiz Blue Golf R

    #14 31st May 2009, 21:00

    I'm guessing he's from Portugal going by his name ?
15. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

    #15 31st May 2009, 21:24

    yes .. I'm from portugal I was then the diagram for the installation
16. user_15989 Saxperience Forum Bum Joined: May 2007 Posts: 4857

    #16 31st May 2009, 21:35

    You already have the wiring diagrams you require on the link you posted. That has the pin outs of your ECU and the ignition diagram. All you have to do is work back on about 15 wires or so for the sensors you require. You don't even need them all to get the engine to fire up. Most important are crank sensor and throttle position sensor.
17. rickycupportugal L-plater Joined: Apr 2009 Posts: 53 citroen saxo cup mk2

    #17 1st June 2009, 18:51

    because then I will make a whole new