3B to AAN ECU question

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • UrS4boy
    S2Forum Obsessed
    • Feb 2006
    • 11859
    • Country: Canada

    #1

    3B to AAN ECU question

    How many with a 3B engine have switched to individual coils, e.g. OE AAN, 1.8t, 034 HO, EFI LS2, etc. etc. by switching to an AAN ECU? If so, how did you handle the G40 Hall Sender, aka cam position sender? Did you use the 3B distributor (Hall Sender is the same inside, I think) or did you switch to an AAN head with Hall sender mounted behind the exhaust cam sprocket? If you used the 3B hall sender, what was involved, wiring-wise?
    RS2'd 93 UrS4 5 spd sedan
    94 UrS4 V8 6 spd manual avant
  • Pirvu Eugen
    S2Forum Extremist
    • Apr 2007
    • 1978
    • Country: Romania

    #2
    Is no problem with the 3B hall sender....remember that the early AAN engines had the hall sender in the distributor....
    Ther are some wires to be changed(position in the ecu plug)....and some others you have to add..( for the coils).
    Should work ok.

    Comment

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

      #3
      Originally posted by Pirvu Eugen
      Is no problem with the 3B hall sender....remember that the early AAN engines had the hall sender in the distributor.... Ther are some wires to be changed(position in the ecu plug)....and some others you have to add..( for the coils). Should work ok.
      Oh trust me I know all about the early AAN tuna can G40 Hall Sensor:

      This: http://forums.quattroworld.com/s4s6/msgs/22607.phtml

      as part of this: http://forums.quattroworld.com/s4s6/msgs/22580.phtml

      which also lead to this: http://12v.org/urs/ReplacementOfTheH...istributor.pdf

      I am hoping for specifics on the wiring to make the 3B Hall sender compatible with an AAN ECU harness connection.
      RS2'd 93 UrS4 5 spd sedan
      94 UrS4 V8 6 spd manual avant

      Comment

      • varia
        S2Forum Maniac
        • Mar 2009
        • 821
        • Current: United States

        #4
        just keep posting it
        sigpic

        Comment

        • Pirvu Eugen
          S2Forum Extremist
          • Apr 2007
          • 1978
          • Country: Romania

          #5
          All i know is that i installed an 3B engine with AAN ecu, coils..etc into an V8...and i used the V8 wiring...modified. The hall signal was used the one from the 3B dizzy. Is working without problems.

          Comment

          • 4WheelDrifter
            S2Forum Zealot
            • Oct 2004
            • 5773
            • Country: Devon

            #6
            The wiring is the same at the hall sender end.
            I have both hall senders on mine, so I can get the car running on the dissy, then swap to the ABY cam sender. To make it easier to do any potential fault finding.
            SS

            Comment

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

              #7
              Originally posted by varia
              just keep posting it
              I thought I would some confirmation that the wiring was straight forward. Seems to be plug and play, AAN G40 harness connector into the 3B distributor. You will have to peel back that portion of the AAN harness (the part with the injector connectors and the G40 connnector at the end) to bring the G40 connector back to the other end of the head. Shouldn't be too tough.
              RS2'd 93 UrS4 5 spd sedan
              94 UrS4 V8 6 spd manual avant

              Comment

              • varia
                S2Forum Maniac
                • Mar 2009
                • 821
                • Current: United States

                #8
                i have s2 harness (both) so which one will be mopre suitable for it?

                thc
                sigpic

                Comment

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

                  #9
                  Originally posted by varia
                  i have s2 harness (both) so which one will be mopre suitable for it?
                  thc
                  I *just* sent you a PM BTW. (Before I saw your post above). If you have a 3B S2 harness, it won't work with the AAN ECU (no POS outputs and multicoil power connections). I would use the ABY harness and peel the G40 connector back so it plugs into the 3B dizzy.
                  RS2'd 93 UrS4 5 spd sedan
                  94 UrS4 V8 6 spd manual avant

                  Comment

                  • varia
                    S2Forum Maniac
                    • Mar 2009
                    • 821
                    • Current: United States

                    #10
                    thank you dave.

                    Dont have aby ecu, but got 3b, aan and vems.

                    sent you pm as well.

                    Thx!
                    sigpic

                    Comment

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

                      #11
                      Originally posted by varia
                      thank you dave. Dont have aby ecu, but got 3b, aan and vems. sent you pm as well. Thx!
                      No PM (in case you forgot to hit SEND)
                      RS2'd 93 UrS4 5 spd sedan
                      94 UrS4 V8 6 spd manual avant

                      Comment

                      • SteveH
                        Super Moderator
                        • Jul 2003
                        • 4460
                        • Country: United Kingdom

                        #12
                        Tuna Can cap

                        Originally posted by UrS4boy
                        Oh trust me I know all about the early AAN tuna can G40 Hall Sensor:

                        This: http://forums.quattroworld.com/s4s6/msgs/22607.phtml

                        as part of this: http://forums.quattroworld.com/s4s6/msgs/22580.phtml

                        which also lead to this: http://12v.org/urs/ReplacementOfTheH...istributor.pdf

                        I am hoping for specifics on the wiring to make the 3B Hall sender compatible with an AAN ECU harness connection.
                        I don't suppose anyone has the part number for the 'tuna can' plastic distributor cap and knows whether it will fit on a 3B distributor?

                        As I've ditched the HT lead setup it would be nice to fit a more compact cap and remove the old rotor if possible.

                        Thanks Steve
                        91 Modded 3B
                        14 A6 Avant Black Edition

                        Comment

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

                          #13
                          Originally posted by SteveH
                          I don't suppose anyone has the part number for the 'tuna can' plastic distributor cap and knows whether it will fit on a 3B distributor? As I've ditched the HT lead setup it would be nice to fit a more compact cap and remove the old rotor if possible. Thanks Steve
                          Steve: That question has been asked before and the answer is/was, the early AAN "tuna can" hall sender cap was never given a separate PN.

                          I have given this answer before: "There is no separate PN for the cover on the Tuna Can dizzy. Suggest either Chicken of the Sea, Ocean Spray or 034 (they sold a cover a while back)."

                          Still listed at 034:



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

                          Comment

                          • SteveH
                            Super Moderator
                            • Jul 2003
                            • 4460
                            • Country: United Kingdom

                            #14
                            Originally posted by UrS4boy
                            Steve: That question has been asked before and the answer is/was, the early AAN "tuna can" hall sender cap was never given a separate PN.

                            I have given this answer before: "There is no separate PN for the cover on the Tuna Can dizzy. Suggest either Chicken of the Sea, Ocean Spray or 034 (they sold a cover a while back)."

                            Still listed at 034:



                            Thanks for confirming

                            However I think I will be looking for something like an empty tuna can based on the price of the over engineered 034 item! I will probably cut down the standard 3B cap and glue on a cover.
                            91 Modded 3B
                            14 A6 Avant Black Edition

                            Comment

                            Working...