vtr not starting again..

1. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

   #1 14th October 2013, 18:53

   Ok thought this problem had cleared itself up but it's back again after a couple of weeks, when I try to start the car it turns over but won't fire up it sometimes splutters a bit but that's it, no lights on the dash no immobiliser light or any of that, smells slightly of petrol but I think that's just from turning over and not firing, any ideas?
   
   Thanks
2. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

   #2 15th October 2013, 22:28

   Anyone? Still can't get it going, sounds like it's making some kind of sucking noise when I try to start it.
3. Jshjnr2 L-plater Joined: Aug 2013 bristol Posts: 53 Vtr mk1 purple s-reg needimg some work

   #3 15th October 2013, 22:40

   Flywheel sensor on the gearbox change that and should be fine
4. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #4 15th October 2013, 22:44

   Crank sensor ok?
5. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

   #5 16th October 2013, 00:29

   Have tried another crank sensor doesn't make a difference, the weird thing is it will randomly start up and run and drive fine then next time you go to start it up it won't have any of it!
6. user_39461 Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.

   #6 16th October 2013, 01:31

   Check fuel and spark when it next doesn't work. If it's not a fault with one if those, it can only really be timing or compression. If it runs at all (ie, sometimes) then that rules out compression. So likely timing. As above, next thought would be crank sensor or ecu fault.
7. SlickandQuick Infrequent Poster Joined: Jun 2013 West Lothian Posts: 109 Citroen Saxo VTR - 2002. Makes all the birds cream

   #7 16th October 2013, 10:02

   Pals saxo had same problem diagnostics said coil pack and we changed it then sold the car supposedly it was the crack sensor
8. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #8 16th October 2013, 11:01

   Other thing to try is the old disconnect the battery for 1/2 an hr(ecu)
9. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

   #9 16th October 2013, 22:49

   Been looking at this again today and ive noticed my fuel pump is not priming when turning on the ignition, is there some way to test the fuel pump without replacing?
10. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

    #10 17th October 2013, 13:35

    Found out today I'm getting no fuel to the injector rail so I'm thinking fuel pump or relay?
11. Gandi699 Saxperience Post Whore Joined: Apr 2011 Posts: 9100 Amazon green VTR 16v, Inferno RS clio 182

    #11 17th October 2013, 13:57

    either or. Relay is easiest to swap
12. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

    #12 17th October 2013, 22:01

    I checked the pump and wiring to it, I'm getting battery voltage on the wiring plug to the pump on turning on the ignition (when u hear the pump prime) and around 4 volts the rest of the time when the ignitions on, I took the pump off and tested it direct to the battery and it worked, then I put it back in the car and it primed and the car started up and ran, left it a few hours tried it again and it wouldn't prime or start again.. Really don't know what's going on, could it still be a bad pump?
13. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #13 17th October 2013, 22:07

    Cheapest thing is to replace the relay & give the fuel pump a tap(temporary measure)
14. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

    #14 17th October 2013, 22:30

    Yeah think I'm going to have to try that, thing is I had a spare pump that I sold not long ago typical!
15. Ben_SaxoForte Saxperience Forum Bum Joined: Mar 2009 Stoke-on-trent Posts: 2640 Mk5 Golf GTTDI Mk2 VTR Project

    #15 19th October 2013, 17:11

    Just thought I would update this, problem now fixed with a replacement pump thanks to stevo for the tip on tapping the pump this helped me diagnose it was definitely the pump at fault! Cheers

    1 user thanked this post: user_20080