No power when i accelerate!!

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  • s2avant95M
    S2Forum Extremist
    • Mar 2004
    • 1217
    • Home: England Current: United States

    #1

    No power when i accelerate!!

    Just got back from work and half way home, the car suddenly decides to have no power when accelerating. If i dont put my foot right down its ok, but as soon as i floor it the car jerks and decelerates quickly. Any help would be appreciated. Sorry if this has been posted before.

    Also not sure if its connected but the fuse for the wipers/indicators blew on the way home, thats been changed and is ok.
    Tim

    1995 S2 Avant, ruby red - ** SOLD TO ROSS **
    Golf Rallye G60 ** SOLD **
    Golf MK2 Oaky with R32 engine
    Audi A6 Avant 1.9 TDi 130
    Golf MK2 8v Race car
  • Crawford_S2
    S2Forum Extremist
    • Jul 2003
    • 1555
    • Home: Scotland Current: England

    #2
    Do a search on "overboost protection" dude, the ABY curse!
    Ragusa Coupe gone!
    sigpic
    VW T4 Multivan. TSW Holstens hiding in the garage for the winter.
    VW Mk1 Caddy pickup, modded or "ruined"
    vw T5 Kombi. In the process of being "ruined"

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    • S2 Ant
      S2Forum Possessed
      • Jul 2003
      • 3682
      • Country: United Kingdom

      #3
      was gonna say that sounds like overboost protection... pos boost leak?

      Have you got a boost gauge? what does it boost to if you have?
      any mods?
      Ant

      2007 Mk5 Golf GTi, 3 door, DSG, REVO Stg 2 and other goodies
      2011 Kawasaki Z1000

      Comment

      • s2avant95M
        S2Forum Extremist
        • Mar 2004
        • 1217
        • Home: England Current: United States

        #4
        Originally posted by S2 Ant
        was gonna say that sounds like overboost protection... pos boost leak?

        Have you got a boost gauge? what does it boost to if you have?
        any mods?
        No boost guage, no mods. Just searched for overboost protection and there are a lot of things to try.
        Tim

        1995 S2 Avant, ruby red - ** SOLD TO ROSS **
        Golf Rallye G60 ** SOLD **
        Golf MK2 Oaky with R32 engine
        Audi A6 Avant 1.9 TDi 130
        Golf MK2 8v Race car

        Comment

        • s2avant95M
          S2Forum Extremist
          • Mar 2004
          • 1217
          • Home: England Current: United States

          #5
          Originally posted by s2avant95M
          No boost guage, no mods. Just searched for overboost protection and there are a lot of things to try.
          Ok, this problem has now been fixed. Well i say that, what had actually happened was the fuse to wipers/indicators and cooling fan had blown. I sat in traffic until i came to a petrol station that had some fuses, changed the offending fuse and carried on. The engine must have got a bit too hot and the overboost protection must have cut in.
          The S2 is now back to its silky smooth best. Thanks for the help...
          Tim

          1995 S2 Avant, ruby red - ** SOLD TO ROSS **
          Golf Rallye G60 ** SOLD **
          Golf MK2 Oaky with R32 engine
          Audi A6 Avant 1.9 TDi 130
          Golf MK2 8v Race car

          Comment

          • audiman
            S2Forum Freak
            • Jul 2003
            • 4827
            • Country: United Kingdom

            #6
            Ah yes, the ECU limits boost if the coolant temp rises above a certain limit.
            sigpic
            Tom C - www.rcmr.co.uk
            Audi UR Quattro
            Audi 100 C3 2.0 5 cyl 115ps
            Audi S2 - 07k engine project aiming for 800ps
            Audi B5 RS4 645ps 911nm

            Comment

            • Greenm3
              S2Forum Maniac
              • Jul 2004
              • 512
              • Country: United Kingdom

              #7
              could this be why the temp on mine today sitting in hot traffic got to over 90, and i floored it off, and there was no power and a back fire once it got too top revs, any one else had problems wich they're rev guage, mine seems tempramental?

              Comment

              • s2avant95M
                S2Forum Extremist
                • Mar 2004
                • 1217
                • Home: England Current: United States

                #8
                ARRRRRGGGGGHHHH!!!

                The problem has not gone away, it seems that as soon as i floor the throttle the overboost protection kicks in, i guess this means a boost leak!!??? it all just seems to coincidental that it started happening when the fuse blew!?
                Tim

                1995 S2 Avant, ruby red - ** SOLD TO ROSS **
                Golf Rallye G60 ** SOLD **
                Golf MK2 Oaky with R32 engine
                Audi A6 Avant 1.9 TDi 130
                Golf MK2 8v Race car

                Comment

                • s2avant
                  S2Forum Fiend
                  • Jul 2003
                  • 2426

                  #9
                  You may find you've developed a leak after it got too hot. Your going to need to check all the hoses to for a boost leak.

                  On mine it would be fine from cold until you had driven 20 miles or so and then overboost protection would kick in. It got progressively worse until you couldn't floor it at all without the protection routine cutting the fuel.

                  It was only cured after fitting the samcos and replacing all the small bore vacuum pipe (for the second time).

                  Ben
                  the best intentions are fraught with disappointment - gil grissom

                  sigpic
                  1994 ABY Avant - it's getting there

                  Comment

                  • S2central.net
                    Retired OG Mod
                    • Jul 2003
                    • 16590
                    • Country: Northern Ireland

                    #10
                    Aye - sounds like a reasonably sized leak alright... The next ABY samco hose purchase closes this week - so you might want to get a set as a fix and insurance against this in the future.


                    Paul
                    Paul Nugent
                    Webmaster http://S2central.net
                    Administrator http://S2forum.com

                    1994 S2 Coupe ABY - aka Project Lazarus
                    2001 A6 allroad 2.5TDi - family tank
                    2003 S4 Avant 4.2 V8 - daily burble

                    Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

                    There are only 10 kinds of people that understand binary - those that do, and those that don't

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                    • s2avant95M
                      S2Forum Extremist
                      • Mar 2004
                      • 1217
                      • Home: England Current: United States

                      #11
                      Originally posted by S2central.net
                      Aye - sounds like a reasonably sized leak alright... The next ABY samco hose purchase closes this week - so you might want to get a set as a fix and insurance against this in the future.


                      Paul
                      Paul, you have a PM.

                      Tim
                      Tim

                      1995 S2 Avant, ruby red - ** SOLD TO ROSS **
                      Golf Rallye G60 ** SOLD **
                      Golf MK2 Oaky with R32 engine
                      Audi A6 Avant 1.9 TDi 130
                      Golf MK2 8v Race car

                      Comment

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