Car splutters on hard bounce in road

  1. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #1
    Car splutters on hard bounce in road , anyone got any ideas runs fine any other time :/
  2. Frequent Poster Joined: Jan 2011 Posts: 897 106 ph1 rallye 106 gti 106 hybrid thing GTI~6
    #2
    Check the wiring to the map sensor, they often get fractured where it exits the sheathing.
  3. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #3
    all good newly replaced
  4. Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.
    #4
    Gearbox & battery earths for secureness.
  5. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #5
    yeah checked grounds there good its starting to annoy me lol
  6. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #6
    its when the rear goes over a bump not the front is there any fuel cut offs or anything silly like that around the fuel tank ?
  7. Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.
    #7
    Quote:
    Originally Posted by SpeedFreakGTi View Post
    its when the rear goes over a bump not the front is there any fuel cut offs or anything silly like that around the fuel tank ?
    Only fuel cut-off is in the engine bay,lift the rear seats up pull up the round plastic cover for the fuel pump.Then check the fuel pipes,also check the fuel hoses on the fuel filter.Have you had the passenger seat out at all & maybe trapped a fuel line on re-fitting?
  8. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #8
    Rear has been stripped for a while , today i swapped throttle bodys , new plugs , new battery terminals and had a good check around the loom amongst various other jobs and found nothing , runs alot nicer now but still got same problem. :/ nothing todo with bay cut off as far as im aware.

    its rather annoying me.
  9. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #9
    Could be a dodgy pick up maybe ive got a rad to fit in a couple of days so ill have a trace of fuel lines pumps etc and see whats good.
  10. Frequent Poster Joined: Mar 2012 Derbyshire Posts: 770
    #10
    Mine does the same also when you enter a big round about at like 40+ it will do it be nice to know what it is! Think it could be fuel pump on way out
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  11. Super Moderator Joined: Aug 2007 Lancashire Posts: 14256 Astra VXR + 1989 Astra GTE
    #11
    I've had something similar in a previous saxo a few years ago. I bought a saxo that had been stripped out with some cheap bucket seats, the previous owner had squashed the fuel line under the bucketseat subframe when bolting it down. Might be worth checking your fuel lines guys.
  12. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #12
    Quote:
    Originally Posted by W343NNA View Post
    Mine does the same also when you enter a big round about at like 40+ it will do it be nice to know what it is! Think it could be fuel pump on way out
    yeah it was intermittent on a fast corner too but seems to have stopped that, sounds like u have the same thing , nothing todo with pinching any lines because nothings been changed on the car.

    Would love to know what this is.
  13. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #13
    The problem almost vanishes after covering a few miles , so almost seems temp related , aswell as bump related , could it be anything todo with lambda ?
  14. Regular Poster Joined: Dec 2008 Bournemouth Posts: 324 106 GTi
    #14
    Problem fixed.

    So its started annoying the shit out of me and went to town trying to hunt the fault.

    Turns out there was old brittle wiring inside of the crank sensor plug, you have to take the crank sensor plug apart to get it theres a couple of bungs in the way definatly recommend anyone with an old gti running like a bag checks this. Motors running so sweet now