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99-00 Civic EX OBD2a or OBD2b

Discussion in 'General Tech and Maintenance' started by khai_tuan_nguyen, May 6, 2004.

  1. khai_tuan_nguyen

    khai_tuan_nguyen Senior Member

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    Hi there
    I bought a OBD2-1 harness convertor off of someone and they are sending it. They obviously have no wits since they do not know what OBD even is . They used it on a CIVC ex, in an article I was reading here it says 99-00 are OBD2b, but in reference it says the 99-00 civic ex are OBD2a. Anyone know for sure?


    Here are the posts:


    And the second:


    Thanks
    KHai
     
  2. deth101

    deth101 Senior Member

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    straight from my helms terminal arrangement section pages 11-88 through 11-96....

    Engine/Powertrain Control Module Terminal Arrangement
    (96-98 Models "99-00 D16Y5 engine with M/T

    and
    Engine/Powertrain Control Module Terminal Arrangement
    ("99-00 models except D16Y5 engine with M/T)



    the latter being the 0bd2b
     
  3. khai_tuan_nguyen

    khai_tuan_nguyen Senior Member

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    So 99-00 Civics DX, HX, CX, SI, blah blah are all OBD2b, except the ex or D16Y5 Manual?

    So the EX or D16Y5 auto is OBD2b? This is crazy stuff
     
  4. deth101

    deth101 Senior Member

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    those are the only two terminal arrangements in the 96-00 helms copied word for word
     
  5. deth101

    deth101 Senior Member

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    of course in the book nowhere does it say obd2,obd2a,or obd2b
     
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