504 TI Injection problem
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  1. #1
    Fellow Frogger! acf321's Avatar
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    Default 504 TI Injection problem

    Hi Folks

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    Am looking at a 504 Ti, however the owner tells me the F Inj has started to play up and "the car just revs its head off". Does anybody know if this is something that is a common fault on K Injection on a Ti Pug?

    I know its a broad question, but if anyone can shed any light on this, I'd be greatly appreciative.

    Regards

    Adam

  2. #2
    Fellow Frogger! FedGrapes's Avatar
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    Is that revs at idle? Vacuum would be the first place I'd start. All of the vacuum hoses, and brake booster.

  3. #3
    1000+ Posts BIGRR's Avatar
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    504 TI Injection problem-dsc02973-copy.jpg Accelerator outer cable jumped out of its bracket at the butterfly end?
    Present fleet:-
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    Peugeot 73' 504 Ti from new
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    Peugeot 92' 205 Gti
    Renault 72' 16TS from new
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    "Be reasonable do it my way!"


  4. #4
    Fellow Frogger! julian b's Avatar
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    Return spring not working properly

  5. #5
    Fellow Frogger!
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    Whatever it is causing the revving, it's likely to be minor. A fault in the injection pump can cause too much or too little fuel to be injected. Neither of these is going to cause "revving its head off". Like everyone's saying, too much air is getting into the manifold somehow and the pump is squirting in the appropriate amount of fuel, just as it should.

    Have fun,

    Rob.

  6. #6
    1000+ Posts bluey504's Avatar
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    Sticking throttle cable? Did it in my Ti way back when. Ended in a ditch as I wasn't awake enough to realise what was happening.
    Brendan.

  7. #7
    Fellow Frogger! julian b's Avatar
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    Easy to check if its throttle related. Return the throttle spindle by hand . Inner cables can get frayed and not return properly.

  8. #8
    1000+ Posts bluey504's Avatar
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    Quote Originally Posted by julian b View Post
    Easy to check if its throttle related. Return the throttle spindle by hand . Inner cables can get frayed and not return properly.
    Further to julian b's comment and further elaboration to my comment. The inner can fray, I've found it on the inside of the radius. This then cuts the outer case and the cable gets caught. When replacing it don't be tempted to grease or oil it, just attracts dirt, use graphite powder if you must.
    Brendan.

  9. #9
    Budding Architect ???? pugrambo's Avatar
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    diaphram ???
    3 x '78 604 SL

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