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OBD2 and OBD2B

Discussion in 'ECU's, Electronics, and Tuning' started by JSPECHB, Jan 2, 2004.

  1. JSPECHB

    JSPECHB Junior Member

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    Whats the difference between a OBD2 and OBD2B ecu's? Will a 99-00 Si ECU work on a ITR? Si is just OBD2 and ITR is OBD2B.
     
  2. radnulb

    radnulb Senior Member

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    OBD2A = 96-98
    OBD2B = 99+ (99-01?)

    Connectors are physically different. The ECUs are very different internally. Interchangeability depends on year.
     
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