Username or Email Address
Do you already have an account?
Forgot your password?
  • Log in or Sign up


    Results 1 to 12 of 12
    1. 11-15-2006 09:55 AM #1
      Hello,

      I have a 1991 Aigner Cabby with a bad ECU. The part number on the ECU says: 037 997 022 KX

      Looking for a used replacement ECU I keep coming across numbers like: 037 906 022EN

      Can anyone help me figure out what part number I need? It's a non California car.

      Thanks,
      T.J.


    2. 11-15-2006 10:20 AM #2
      I think that my old ECU part number is osme sort of remanufactured piece.

      What is the difference between 037 906 022 DE and 037 906 022 EN?

      Thanks,
      T.J.


    3. Member Black_cabbie's Avatar
      Join Date
      Jul 16th, 2003
      Location
      Athens Greece
      Posts
      8,815
      Vehicles
      Q7 4.2 V8 , Smart 451 Turbo
      11-15-2006 10:40 AM #3
      Any Digifant ECU will work just fine. Even from the MK2 GTI cars.
      Chip Tuning for a living @ www.microchips-tuning.com

    4. 11-15-2006 10:46 AM #4
      Sorry for my ignorance here, but here are a few more questions:

      Does it have to be from an 8V engine?

      How about one from a Jetta or Vanagon?

      Thanks for the help.

      T.J.


    5. Member kamzcab86's Avatar
      Join Date
      Feb 13th, 2002
      Location
      Arizona
      Posts
      16,471
      Vehicles
      1986 Cabriolet Best Seller; 2000 Jetta VR6; 1990 Vanagon Westfalia
      11-15-2006 10:46 AM #5
      The 1990 Cabs received ECU #155998004. In 1991, Cabs received ECU #037906022EN. That ECU was dropped in 2002 and the replacement ECU is #037997022KX.

      FWIW, 037906022DE was dropped in 1991 and the replacement is/was 037906022EN.

      So, in theory, you can use the 037906022EN ECUs that you find.

      HTH

      Cabby-Info.com -- Your online guide to the VW Cabriolets
      Old Blue's Blog -- The adventures of a 1990 Westfalia
      "Fashion is a waste of money that could be better spent on, say, maintaining your car." ~James May

    6. 11-15-2006 10:57 AM #6
      HTH thanks for the info. I will check out of few junk yards to see if I can find an ECU before I plunk down the nearly $1000 for one.

      Since I now have the KX one in there I guess this is not the first failure of the ECU in the cars life huh?


      T.J.


    7. Member tolusina's Avatar
      Join Date
      Oct 18th, 2004
      Location
      313
      Posts
      10,380
      Vehicles
      '95 Ranger, '74 Gitane Pista
      11-15-2006 01:35 PM #7
      T.J.,

      Hi, welcome to the 'tex.

      The "X" in the part number suffix stands for eXchange, as in re-man or rebuilt, not the first failure.
      You've noted above, the car is not a California model, still, check the number of pins on your current ECU, compare to your replacement. California DigiFant I cars use a 38 pin connector, DigiFant II cars use a 25 pin connector. Not all pins may actually be used in either version.

      I'm wondering if you are 100% positive the ECU has failed?

      Ron

      vwvortex search is weak. Instead, type search terms site:http://forums.vwvortex.com into the google search box.
      Quote Originally Posted by kamzcab86
      I hate reading: "But I bought this car for $500 and don't want to put another dime into it."
      ____(hey, it's VW AND it's electrical, what's not to fail?) neoBentley+

    8. Member diceman469's Avatar
      Join Date
      Sep 2nd, 2003
      Location
      Crystal Coast, NC
      Posts
      1,540
      Vehicles
      07 Rabbit/92 Jasmine Cabby/85 Isuzu Pup
      11-15-2006 01:38 PM #8
      I have one if you're interested that I paid about $125 for about a year ago. Throw me an offer!

    9. 11-15-2006 01:40 PM #9
      Ron,

      I'm not 100% sure but here's what I have...

      Fuel pump works and there are sparks at the plugs. Car cranks, but won't turn over. I think there must be an issue getting fuel into the cylinders and since I have good fuel pressure I'm thinking it's the ECU.

      T.J.


    10. Member tolusina's Avatar
      Join Date
      Oct 18th, 2004
      Location
      313
      Posts
      10,380
      Vehicles
      '95 Ranger, '74 Gitane Pista
      11-15-2006 02:10 PM #10
      T.J.,

      Quote, originally posted by TJ Fitz »
      .......

      I'm not 100% sure but here's what I have...

      Fuel pump works and there are sparks at the plugs. Car cranks, but won't turn over. I think there must be an issue getting fuel into the cylinders and since I have good fuel pressure I'm thinking it's the ECU....

      There are several other places I'd look prior to ECU replacement.

      The main ECU ground from pin 13 grounds directly at the battery ground terminal, I'd start there, looking for loose brown wires, clean any corrosion, repair all corrosion damage.

      The ECU has it's own fuse and relay separate from the fuel pump circuits. That you have spark is a pretty good indicator the fuse and relay are good too, check fuse S17 anyway, it's just too easy.

      I'd sure remove the large intake duct between the Air Flow Sensor and the throttle body, look at and through it for cracks and splits while flexing it in all directions, use good lighting.

      Check for power on the red wire to/at the injectors, it should be hot continuously whenever the fuel pumps run.
      If you have a two color LED tester, you can check for an injector signal on the brown/white wire to the injectors.

      Have you checked to see if the cam or distributor timing has jumped?

      A fuel pressure check directly at the fuel rail is a real good idea, there is a convenient test port right on the rail. (Oops, I see you've stated you have good pressure, I hope tested with a gauge.)
      Have you checked for a plugged fuel filter?

      Ummm, have you maybe disconnected the Air Bag controller?
      ________
      List above is not necessarily complete, nor is there any particular order, it just came out that way.

      Ron


      vwvortex search is weak. Instead, type search terms site:http://forums.vwvortex.com into the google search box.
      Quote Originally Posted by kamzcab86
      I hate reading: "But I bought this car for $500 and don't want to put another dime into it."
      ____(hey, it's VW AND it's electrical, what's not to fail?) neoBentley+

    11. 11-15-2006 05:51 PM #11
      I have checked almost all of that list. Seems to be an ECU problem. Are the various part numbers interchangeable? (037 906 022 **)

      I think I am looking for EN or DE.

      Thanks,
      T.J.


    12. 11-15-2006 08:07 PM #12
      look on ebay for one... i got a good bosche one for $1.. and i havent had any problems with it... so.. its worth a shot over one from the dealers... or u could just find a digi golf at the wreckers... u dotn really have to worry about cally cars.. they will be digi 1 not digi 2

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •