Blocked EVAP

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  • davenoble123
    S2Forum Fanatic
    • May 2013
    • 65
    • Country: United Kingdom

    #1

    Blocked EVAP

    My S2 ABY cuts out when I fully open the throttle, I think it's because of fuel starvation, and I think that's because of a blocked EVAP canister. The easiest thing to do would be to disconnect it, either at the EVAP can, or the fuel tank. Only the problem is, I don't know where the EVAP is, or where the breather is attached to the fuel tank. I'd love it if anyone knows where it is, and which one is the best option.
    1996 Audi S2 Coupe ABY Emerald Green
  • Monkeymagic
    S2Forum Possessed
    • Mar 2012
    • 3419
    • Country: England

    #2
    Thought evaporation canister is on left hand side Wing.

    Comment

    • davenoble123
      S2Forum Fanatic
      • May 2013
      • 65
      • Country: United Kingdom

      #3
      Under The Arch?????
      1996 Audi S2 Coupe ABY Emerald Green

      Comment

      • Monkeymagic
        S2Forum Possessed
        • Mar 2012
        • 3419
        • Country: England

        #4
        It's in the inner arch in the engine bay on my 3b.
        My brother old 16v was under wheel arch.liner bolted to a post.

        Comment

        • davenoble123
          S2Forum Fanatic
          • May 2013
          • 65
          • Country: United Kingdom

          #5
          Thanks, I'll have a look in the morning
          1996 Audi S2 Coupe ABY Emerald Green

          Comment

          • UrS4boy
            S2Forum Obsessed
            • Feb 2006
            • 11859
            • Country: Canada

            #6
            N80 Evaporative Emissions Frequency Control Valve and Canister info

            I seriously doubt that it is blocked. Disconnected, maybe, but not blocked.

            Read this:

            N80 Evaporative Emissions Frequency Control Valve and Canister info


            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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            • davenoble123
              S2Forum Fanatic
              • May 2013
              • 65
              • Country: United Kingdom

              #7
              I should have asked, is it in the left wing for a RHD car or a LHD car, or does it not make a difference?
              1996 Audi S2 Coupe ABY Emerald Green

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              • rxl
                S2Forum Extremist
                • May 2012
                • 1913
                • Country: Germany

                #8
                LHD- Passengers side.

                Comment

                • davenoble123
                  S2Forum Fanatic
                  • May 2013
                  • 65
                  • Country: United Kingdom

                  #9
                  What about a RHD, because that's what I have
                  1996 Audi S2 Coupe ABY Emerald Green

                  Comment

                  • Costash
                    S2Forum Maniac
                    • Mar 2009
                    • 878
                    • Home: Romania Current: United Kingdom

                    #10
                    Driver side mate

                    Comment

                    • davenoble123
                      S2Forum Fanatic
                      • May 2013
                      • 65
                      • Country: United Kingdom

                      #11
                      Cheers
                      1996 Audi S2 Coupe ABY Emerald Green

                      Comment

                      • macspring
                        S2Forum Zealot
                        • Mar 2005
                        • 6371
                        • Home: Ireland Current: Wallis & Futuna

                        #12
                        Originally posted by davenoble123

                        My S2 ABY cuts out when I fully open the throttle, I think it's because of fuel starvation,
                        I don't know much, but before going to this bother, have you changed your fuel filter under the drivers side RHD rear of the car ?

                        Have you changed the fuel pump ? If you do change your fuel pump, take the opportunity to update / future proof to a Bosch 044 pump, if you definitely intend to keep the car.

                        Changing the pump can be difficult for the uninitiated, so be prepared to pay for a decent garage to do it, or get someone near you to do it / assist you.

                        What is the mileage on the car ?

                        Yesterday I changed the fuel pump as it felt like a car that wasn't fully interested in revving, it would do it, but it's heart was't fully in it, but after changing the pump yesterday it revs like a 'Honda' - cleanly and everytime like it should.

                        The car only has 50k miles on it, but it is 18 years old.

                        Just sayin..........

                        p.s. Dave is right.

                        HTH.





                        Last edited by macspring; 27 June 2015, 09:51.

                        Comment

                        • Error404
                          Super Moderator
                          • Mar 2007
                          • 19789
                          • Country: United Kingdom

                          #13
                          As per PM this is fuel cut, caused by the ECU not liking the amount of air the MAF is reading.
                          Do a boost leak test and check the MAF connector.
                          Panthero Coupé quattro 20vt
                          Indigo ABY coupé
                          Imola B6 S4 Avant

                          Comment

                          • andy10v
                            S2Forum Zealot
                            • Mar 2009
                            • 5996
                            • Country: Scotland

                            #14
                            How did you come to diagnose the EVAP?

                            I would post up your symptoms, and any tests you have done and people will be more than happy to walk you through.

                            I would start with fault codes and a boost leak test of the entire intake system as it will probably be leaking if you have not done this before.
                            Current-2004 Impreza PPP wagon

                            Sold-92 3B coupe-RS2+, 996s, konis, rear torsen, forged rods........
                            Sold ABY-stock

                            Comment

                            • davenoble123
                              S2Forum Fanatic
                              • May 2013
                              • 65
                              • Country: United Kingdom

                              #15
                              Disconnected the EVAP, works perfectly now.
                              1996 Audi S2 Coupe ABY Emerald Green

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