Badger5Monster Motorsport
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  1. #1

    Join Date
    Aug 2011

    lift pump question 2.0 tdi 140 bkd

    when you turn the ignition on how long should the lift pump go for,iv just tested mine by pulling a pipe off and putting it in a bottle and when i turn the ignition on it only pumps for about a second and not even a mouthfull of diesel comes out,i would have thought it should be longer to get pressure in the system.

  2. # ADS
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  3. #2
    Sportback owner

    Join Date
    Apr 2007
    I would think that the pump expects to pump very little fuel into the system. It expects that the pressure will increase very quickly and then it can stop pumping. Faced with no back-pressure it may think there is an open pipe somewhere and automatically cuts-off. Generally, it would not have to pump for more than a second or two before the system is fully primed. Suggest you re-connect the pipe and see how long it takes to get the system pressure up to its design point. If it pumps for a considerable time, suspect a leak somewhere. Hope this helps.
    French A3 Sportback 2006, 2.0L 140 TDI, DSG, RSN-E, Ambient lighting, Auto-lights/wipers, Reverse assist, Dolphin Grey, 17" wheels, Leather seats, Cruise control, Roof bars.

  4. #3
    devonmikeyboy's Avatar
    As far from JBS as possible !

    Join Date
    Feb 2007
    As the man says above ^^^^^^
    06 Audi 2.0 PD140 Sport TDI Quattro S-LINE.
    Old engine 330 bhp @ flywheel 263 bhp @ wheel 490 lb torque. Audidriver write up HERE
    Now stripped and playing with an uprated Cryo treated engine fitted with bigger turbo,water/methanol,uprated injectors etc etc.Wanting 400 bhp and 500 lb torque.

    Other car 500+ bhp MK4 Golf R32 turbo.



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