No Power to fuel pump

1. Domm L-plater Joined: Jan 2012 Southampton Posts: 80 Citroen Saxo 1.1i

   #1 15th September 2012, 18:13

   Hey, I currently have no power to my fuel pump, I have tried changing a few relays, hoping one is the right one, the green one next to the fuses in the engine bay and the red one under the ECU. However there is still no power, I have power too my fuel gauge. I was thinking about just wiring a new power lead to it, however I have no idea about what to do, I can do basic wiring, but i do not know where I will have to wire it too, e.g. ignition, emergency cut off's, relays ?
   
   Any help appreciated
   Thanks, Dom
2. gazza808 Frequent Poster Joined: Jul 2007 Posts: 591

   #2 15th September 2012, 18:38

   Did you reset the cut off?
3. Domm L-plater Joined: Jan 2012 Southampton Posts: 80 Citroen Saxo 1.1i

   #3 15th September 2012, 18:49

   How do I do that ? I assume the AA tried it when they tried to fix it but no harm in giving it another go!
4. user_39461 Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.

   #4 15th September 2012, 19:02

   Red button, close to brake servo. Press it.
5. Domm L-plater Joined: Jan 2012 Southampton Posts: 80 Citroen Saxo 1.1i

   #5 15th September 2012, 19:45

   Quote:

   Originally Posted by Ross Red button, close to brake servo. Press it.

   No luck, I'm guessing the wire must be damaged somewhere then? because it isnt the relay, cut out or pump, as the pump worked with a power pack attatched to it ?
6. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #6 15th September 2012, 19:53

   you sure the relay was working that you tried? the one youd need is the one under the ecu as youve said
   
   no fuses blown?
   
   if its not working still...take an ignition live from the fuse box and bypass it..but it would be worth trying to trace the wire back and finding out why its not working in the first place..
   
   as it may be cut somewhere on the chassis..which does have the small chance of causing a fire
7. Domm L-plater Joined: Jan 2012 Southampton Posts: 80 Citroen Saxo 1.1i

   #7 15th September 2012, 19:57

   Quote:

   Originally Posted by blackie_2k5 you sure the relay was working that you tried? the one youd need is the one under the ecu as youve said no fuses blown? if its not working still...take an ignition live from the fuse box and bypass it..but it would be worth trying to trace the wire back and finding out why its not working in the first place.. as it may be cut somewhere on the chassis..which does have the small chance of causing a fire

   Not 100% I'll try another one out to be sure first. Also does the live wire literally go straight from the fuse box to the pump ?
8. blackie_2k5 Saxperience Hardcore! Joined: Oct 2008 Birtley Posts: 22253 VTR Turbo, 106 xsi track slag, Transit recovery, B

   #8 15th September 2012, 20:00

   just find a live that is only igntion live..IE when you turn the key off its dead
   run it from the source with a fuse inline..to the pump
   
   but do try to check the wires first
   
   check the wiring round the ecu tray too..as mine rubbed through on the tray and killed my relay...pump was still live but it had killed the live to the injectors
9. Domm L-plater Joined: Jan 2012 Southampton Posts: 80 Citroen Saxo 1.1i

   #9 15th September 2012, 20:05

   Quote:

   Originally Posted by blackie_2k5 just find a live that is only igntion live..IE when you turn the key off its dead run it from the source with a fuse inline..to the pump but do try to check the wires first check the wiring round the ecu tray too..as mine rubbed through on the tray and killed my relay...pump was still live but it had killed the live to the injectors

   Ok, thanks, I'll check all the wires tomorrow and see if this works
   
   Cheers!
10. Domm L-plater Joined: Jan 2012 Southampton Posts: 80 Citroen Saxo 1.1i

    #10 16th September 2012, 20:26

    I've run a live from the ignition live on the stereo, and the car runs fine now, I assume this is all safe ?
11. Scrapso Infrequent Poster Joined: Jan 2012 Posts: 152

    #11 16th September 2012, 22:54

    Seems a bit strange to me I had this issue on my vts turned out to be a dicky fuel cut off switch chopped the wires n joined em together
12. DUFC Regular Poster Joined: Jul 2012 Dundee Posts: 488 Looking for 16v furio.

    #12 16th September 2012, 23:17

    Quote:

    Originally Posted by Domm I've run a live from the ignition live on the stereo, and the car runs fine now, I assume this is all safe ?