1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

p74-901 LS ecu

Discussion in 'ECU's, Electronics, and Tuning' started by ants91LShatch, May 5, 2009.

  1. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    Well I just got this obd1 LS ecu in the mail today and I notice that it the small square box ecu. Which supposedly I have read that it is a JDM model. Can someone tell me if that is correct or not? The big problem is that the ecu has only two spots on it to accept clips. In other words my obd0 ecu accepts two clips from the harness. I am converting the car to obd1 to run the newer ecu and eventually LSV. So my obd0 to obd1 conversion harness has three clips coming out of it to plug into my new obd1 ecu. So I guess the question I have is will this ecu work? Is it a JDM piece? and WTF?

    Any help or insight is much appreciated
     
  2. Briansol

    Briansol Admins Admin VIP

    Messages:
    21,453
    Likes Received:
    2,117
    Joined:
    Nov 18, 2007
    Location:
    CT
    small case is usually NON-US (not necessarily JDM... maybe EDM, etc)

    obd1 looks like this:

    [​IMG]
     
  3. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    I've seen this diagram before, quite a few times actually. Thats why I'm so confused. The ecu has the right serial #'s, but the space where you put the clips is missing the A connector part.
     
  4. Briansol

    Briansol Admins Admin VIP

    Messages:
    21,453
    Likes Received:
    2,117
    Joined:
    Nov 18, 2007
    Location:
    CT
    does it look like one of these?

    [​IMG]

    [​IMG]


    [​IMG]


    it if doesn't match obd1, its not obd1 and you got scammed :(
     
  5. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    Lemme ask you this, The diagram you just posted is for b16's and and gsr's right? Are the LS ecu's different, meaning only two connectors? I don't think there any different are they except for the pinouts?
     
  6. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    I'm about to take some pics to show you, I'm about to be real pissed.
     
  7. Briansol

    Briansol Admins Admin VIP

    Messages:
    21,453
    Likes Received:
    2,117
    Joined:
    Nov 18, 2007
    Location:
    CT
    they are all the same 'plastic'. just the pins are missing or have more for the correct obd.

    it sounds like you got a 90 teg ls ecu, obd0
     
  8. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    Thats what I'm running in my can now, a 90 LS obd0 ecu. This is definitely not not that.
     
  9. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    i cant get the fukin pic uploaded.
     
  10. Briansol

    Briansol Admins Admin VIP

    Messages:
    21,453
    Likes Received:
    2,117
    Joined:
    Nov 18, 2007
    Location:
    CT
    you need 15 posts to use the attachment system here...
    try tinypic.com
     
  11. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    no wonder, thanx
    anyway, if you can imagine it, this ecu accepts the obd1 harness plugs, but doesn't have the A slot for that larger plug.
     
  12. ants91LShatch

    ants91LShatch New Member

    Messages:
    9
    Likes Received:
    0
    Joined:
    Jan 11, 2009
    Location:
    yorktown heights, NY
    this is so week. Thanks for your help, I'm going to bed.
     
Verification:
Draft saved Draft deleted

Share This Page