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  1. #41
    Welly's Avatar
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    Quote Originally Posted by zeeeebo View Post
    mines an a3 but yer i will be changin the fuel relay and have a drive see what happens then also put the earth on! would like to find out what the 4 earths are so i can unplug each one while car is on and try and make it die and throw the same fault codes up so then i canrule them out
    To be honest dude, I can't remember exactly where those earth points come from, or what they are for. But I believe that they are the main engine loom earth points.

    As Bill said,
    follow the larger earth from the battery to the chassis and to the bell housing clamp bolt..
    possible disconnection there
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  3. #42
    zeeeebo's Avatar
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    anyone know the part numbee for fuel relay

    -AUDI A3 1.8T-
    coldside dumpvalve relocation kit/powerflow exhaust/k+n shielded air intake/ JOM coilovers/forge splitr/forge carbon fibre engine cover/soild flywheel conversion/REVO

  4. #43
    Welly's Avatar
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    I tried to look on VAG CAT mate, but I can't get on to the EPC for some reason....

    Phone Audi is your best bet.
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  5. #44
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    are these the modules? if so which ones the fuel relay??



    the 4 wires under the battery tray






    the earth wire from battery to engine looks ok


    -AUDI A3 1.8T-
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  6. #45
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    The oil on the plugs will be from a leaking cam cover gasket. It pools up around the plug a little so when you unscrew them the oil runs onto the plug giving the impression there is an internal engine problem.

    Fuel pump relay should be the 4th slot from the left which would be the one with "167" written on it. Rest your finger on it as you prime the pump. You'll feel it click inside. Also there will be a red/yellow wire connected to it.

  7. #46
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    just a quick update, took apart the battery tray to get to the 4 earths again gave them a very good clean! i also ran the car and unplugged each earth in time but couldnt get engine to cut out. spent ages waggling around differnt wires checking for loose conections. the car hasnt cut out now for 200ish miles so perhaps it was the 4 connectors but im still unsure, i will be replacing the fuel relay just for the sake of it as im trying to sell my car at the mo and dont want to sell it with any problems!!!

    -AUDI A3 1.8T-
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  8. #47
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    p.s if it does cut out before the fuel relay is put in then people are still in the runnings for the tenner will keep you all posted as someone might find this thread very use full in years to come as i know how many hours i have spend searching many forums trying to find the answer!

    -AUDI A3 1.8T-
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  9. #48
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    ok found something interesting on my lunch break. if i clear all error codes and unplug the fuel pump relay and try to start the car, the exact same 6 error codes come up! aka sort to earths on all the injectors etc

    -AUDI A3 1.8T-
    coldside dumpvalve relocation kit/powerflow exhaust/k+n shielded air intake/ JOM coilovers/forge splitr/forge carbon fibre engine cover/soild flywheel conversion/REVO

  10. #49
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    cant be bothered to check all the posts but has anyone mentioned the crank sensor?

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  11. #50
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    Quote Originally Posted by DaveA3 View Post
    cant be bothered to check all the posts but has anyone mentioned the crank sensor?
    Would throw a fault code for the sensor as well as cutting out next to all the time. I had a crank sensor pack up, and it was not a happy bunny.

    Good shout though.
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  12. #51
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    Quote Originally Posted by zeeeebo View Post
    ok found something interesting on my lunch break. if i clear all error codes and unplug the fuel pump relay and try to start the car, the exact same 6 error codes come up! aka sort to earths on all the injectors etc
    Good test - get a replacement for testing further.

    Also check the pins on the replay and the female side as well for corrosion.
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  13. #52
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    yer i thought the crank sensor first of all but as welly said it would throw a fault code

    -AUDI A3 1.8T-
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  14. #53
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    my dads didnt throw a code on his a4. it would be fine for weeks then starts playing up again. it got worse and worse. Until my cousins uncle (indy mech) changed the sensor then it was cool. sounds similar just wonder if ur digging too deep mate. but im no mechanic just a guy who reads forums alot lol

    could get one from euro car parts or something n take it back if it dont make a diff. think u get a couple of weeks

    Audi A3 1.8T Sport (AGU) - 2000
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  15. #54
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    That's a fair point mate, I guess the don't always throw codes, as is true with all sensors.

    However, the crank sensor dying intermittently wouldn't give the fault codes that are being given by the ECU.
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  16. #55
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    if it cats out randomly is more then likely the cranck or cam sensore it want cum up with anyfaults while running!shouldn t be to expensive to replace/

  17. #56
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    Quote Originally Posted by durk View Post
    if it cats out randomly is more then likely the cranck or cam sensore it want cum up with anyfaults while running!shouldn t be to expensive to replace/
    Are you people actually reading the first page discussion, or Z's findings today? LOL.

    99% of the time the crank sensor or hall sensor will throw a fault code when failed.
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  18. #57
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    who git the tenner then?
    Ibiza Cupra TDI

    Gone:

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    Audi 8L S3 - Revo'd

  19. #58
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    Unsure if this is related, but had the same problem with a peugeot i owned.
    It also seemed as if it had ran out of petrol, and if i pumped the throttle it would back fire. When it first started it, if i unscrewed the petrol cap (sounds daft i know) it would run enough to get me home, leave it for an hour and car ran fine again.

    I found in the end it was the fuel pump, replaced it problem solved.
    It's better to burn up, than to fade away...

  20. #59
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    once i have replaced fuel relay i will drive 500miles if it doesntcut out the first person that mentioned the relay will get it

    -AUDI A3 1.8T-
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  21. #60
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    p.s everyone will get a thanks for helping=)

    -AUDI A3 1.8T-
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  22. #61
    Welly's Avatar
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    LOL, always happy to help out mate, the money isn't what makes me want to!
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  23. #62
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    yer half my mind wants to give it to you welly as this isnt the first time you have helped out!!! if ya ever need my help give us a shout!

    -AUDI A3 1.8T-
    coldside dumpvalve relocation kit/powerflow exhaust/k+n shielded air intake/ JOM coilovers/forge splitr/forge carbon fibre engine cover/soild flywheel conversion/REVO

  24. #63
    Welly's Avatar
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    I'm good matey, money is overrated! LOL.
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  25. #64
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    haha tell me about it i work in a bank haha!

    -AUDI A3 1.8T-
    coldside dumpvalve relocation kit/powerflow exhaust/k+n shielded air intake/ JOM coilovers/forge splitr/forge carbon fibre engine cover/soild flywheel conversion/REVO

 

 
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