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B16A swap help

Discussion in 'ECU's, Electronics, and Tuning' started by vtecmatt, Mar 20, 2012.

  1. vtecmatt

    vtecmatt New Member

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    Hello,

    I just swaped in a B16A engine into my 99 Civic and when i was about to hook up the ecu i ran into a problem, the wire harness from the engine has 3 connectors but there is another one left over from the D16 that was in there before.

    [​IMG][​IMG]

    The forth connector is (the extra one) has the following wires:

    [​IMG][​IMG]

    My question is.. is there an adapter i can buy or a guide on that wire to cut and splice in?

    If there's any information I left out that you may need to help let me know!:)

    Thanks
     
  2. GmodKid

    GmodKid New Member

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    Did u get the right jumper harness? Is it for obd2b? Cuz if not u might run into that problem
     
  3. vtecmatt

    vtecmatt New Member

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    the one that i have is OBD2A not B from what I've seen online the OBD2B harness only takes in 3 connectors unless I'm mistaken
     
  4. josh_crewdson@y

    josh_crewdson@y New Member

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    My 99 civic ex has two plugs on the engine harness and one plug from the cabin harness all three plug into the ecu.
     
  5. vtecmatt

    vtecmatt New Member

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    I'm using the wire harness that was on the b16 that i pulled from a 97 civic not the one from my d16
     
  6. CAFROG

    CAFROG Honda Minion VIP

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    97 was OBD2A. Might be your problem. (EDITED)
     
    Last edited: Mar 23, 2012
  7. vtecmatt

    vtecmatt New Member

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    If i look up the pin outs of an obd2b to obd2a conversion harness and just splice the wires in from the other connector would that work? If not should i use my d16y8 harness and if i do what kind of modifications will i have to do to the harness?

    Thanks:)
     
  8. josh_crewdson@y

    josh_crewdson@y New Member

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    96-98 = obd2a
    99-00 = obd2b
     
  9. CAFROG

    CAFROG Honda Minion VIP

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    ^^^^ Correct....I cannot believe I said 97 was OBD2B.....its OBD2A. Edited my post
     
  10. josh_crewdson@y

    josh_crewdson@y New Member

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    I'd just put your car's original harness on the b16.
     
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