Fueling Issues S2 Avant ABY

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  • mooncat247
    S2Forum Hobbyist
    • Feb 2011
    • 17
    • Country: United Kingdom

    #1

    Fueling Issues S2 Avant ABY

    Hi peoples!
    Anyone have any ideas why my S2 struggles on start up, taking as long as 20seconds to fire then searches for revs for a couple of minutes?
    Also when accelerating hard in 3rd and 4th it seems as the fuel pump cuts out and the engine stutters. Although this is not normally an issue as I try to accelerate smoothly, but occaisionally when you want that initial boost the engine almost seems to stall.
    Any ideas guys? Anyone elses S2 struggle with similar issues?
    Cheers,
    Chris
  • UrS4boy
    S2Forum Obsessed
    • Feb 2006
    • 11859
    • Country: Canada

    #2
    Fuel Pressure Regulator info and PNs

    I would put my money on your Fuel Pressure Regulator have a torn diaphram or some form of leak. Have a read on this:

    The Audi Enthusiast website. Forums for all Audis including A4, S4, A5, S5, A6, S6, allroad, A8, S8, TT, R8, Q5, Q7, 4000, 100, 200, v6, v8, vintage, local forums
    RS2'd 93 UrS4 5 spd sedan
    94 UrS4 V8 6 spd manual avant

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    • mooncat247
      S2Forum Hobbyist
      • Feb 2011
      • 17
      • Country: United Kingdom

      #3
      Many thanks URS4boy! That would sound like a logical explanation.

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