AEL crankshaft positioning sensor

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  • Billman
    S2Forum Freak
    • Nov 2004
    • 4129

    #1

    AEL crankshaft positioning sensor

    Does anyone knows the part number of this sensor? I was wondering if I can use this on the stroker if I don't manage to make the other one work. I think it would be possible with vems.

    Does anyone also knows how many degrees BTC this sensor reads?
    Go Holset or Go RS4
  • Pirvu Eugen
    S2Forum Extremist
    • Apr 2007
    • 1978
    • Country: Romania

    #2
    078905375....but looks the same as the 20v turbo ones...

    Comment

    • Billman
      S2Forum Freak
      • Nov 2004
      • 4129

      #3
      I tried today but it doesn't fit. It seems the ael one is thinner.

      Does anyone had both in hand. The ael one reads internaly on the crankshaft an not on the flywheel pin.
      Go Holset or Go RS4

      Comment

      • Billman
        S2Forum Freak
        • Nov 2004
        • 4129

        #4
        any has a block with the sensor and can share please. Is it reallly the same sensor as in the ABY/ADU/3B?
        Go Holset or Go RS4

        Comment

        • Billman
          S2Forum Freak
          • Nov 2004
          • 4129

          #5
          nobody?
          Go Holset or Go RS4

          Comment

          • Billman
            S2Forum Freak
            • Nov 2004
            • 4129

            #6
            found a picture it seems they are the same as Pirvu mentioned!



            Does anyone knows how many degrees BTDC the gap is? I could not find any manual anywhere.
            Last edited by Billman; 18 October 2011, 21:58.
            Go Holset or Go RS4

            Comment

            • QuattroFever
              S2Forum Extremist
              • May 2006
              • 1360
              • Country: United Kingdom

              #7
              Are you having trigger errors and thats why you are looking for an upgrade?
              Volcano ABY coupe

              Ant

              Comment

              • Billman
                S2Forum Freak
                • Nov 2004
                • 4129

                #8
                Yes i have trigger errors. Had some above 6000 but now that i messed with the sensor holder i have above 4000.

                I reduced the holder height by about 0.6mm and hope that it will solve the issues.

                I am looking into posible solutions and since with the stroker and VEMS i have the posibility of another sensor position i am preparing. Anyone also knows if the AEL uses some sort of gasket sealant of somekind on there?

                If i new better I would have take care of it when the engine was off the car, once and for all.
                Go Holset or Go RS4

                Comment

                • Billman
                  S2Forum Freak
                  • Nov 2004
                  • 4129

                  #9
                  the crankshaft plate looks like this



                  Go Holset or Go RS4

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                  • Billman
                    S2Forum Freak
                    • Nov 2004
                    • 4129

                    #10
                    It seems i measured wrong the hole and the sensors. There was debree so the S2 crankshaft positioning sensor fits in the hole in the
                    AEL block. Now i must see if the diesel trigger wheel is usable with VEMS. I think if i manage to find out at what degrees these gaps occur then i can set the VEMS to ignore the other 3 pulses or maybe set it up so it ignites in every 8 event instead of every second with the stock flywheel pin.

                    ...but first i must see if the changes to the stock bracket where succesful.
                    Go Holset or Go RS4

                    Comment

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

                      #11
                      Originally posted by Billman
                      nobody?
                      I am not even sure what vehicle the AEL came in. However, I can offer this AAN-related info in hopes that it might have some relevance for your solution:


                      RS2'd 93 UrS4 5 spd sedan
                      94 UrS4 V8 6 spd manual avant

                      Comment

                      • Billman
                        S2Forum Freak
                        • Nov 2004
                        • 4129

                        #12
                        AEL is the 2.5 diesel engine found in the early A6. It is let's say the evolution of the AAT diesel engine.

                        It has the crankshaft positioning sensor on the block and not on the belhousing edge and reads inside the engine like the golf 4 tdi engines.
                        Go Holset or Go RS4

                        Comment

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

                          #13
                          Originally posted by Billman
                          AEL is the 2.5 diesel engine found in the early A6. It is let's say the evolution of the AAT diesel engine. It has the crankshaft positioning sensor on the block and not on the belhousing edge and reads inside the engine like the golf 4 tdi engines.
                          Okay. I have the Haynes C4 100/A6 manual and it covers the removal of the AEL engine speed sensor on pg. 4C-12 (Illustration 11.16). But it doesn't say anything useful.

                          Apparently the AEL ignition timing sender, i.e. the equivalent to the G4 in the AAN world, is the same as the V6 AAH one. Maybe that helps?

                          RS2'd 93 UrS4 5 spd sedan
                          94 UrS4 V8 6 spd manual avant

                          Comment

                          • Billman
                            S2Forum Freak
                            • Nov 2004
                            • 4129

                            #14
                            It seems the sensor is the same as in the ABY ect. The question remains: Is it usable?
                            Go Holset or Go RS4

                            Comment

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

                              #15
                              Originally posted by Billman
                              It seems the sensor is the same as in the ABY ect. The question remains: Is it usable?
                              Technically, I have to disagree. The ABY, AAN and ADU ignition timing sender is a different part no., i.e. 034905381. The AEL timing sender, 078905375, is the same as the AAH (V6) and ABC (??).

                              RS2'd 93 UrS4 5 spd sedan
                              94 UrS4 V8 6 spd manual avant

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