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Gsr Ecu's?

Discussion in 'ECU's, Electronics, and Tuning' started by nash, Apr 16, 2003.

  1. nash

    nash Senior Member

    hey, about gsr ecu's do they change alot from years.? like 94-98? and 99-2001 ? the reason is because i going to drop a b18c1 into my 99 si soch civic coupe, and i wanted a 1999 new motor. Dude told me the wirng is different on 99 gsr b18c1 vs any older motor cause something to do the the computer. is this true? is their a difference between jdm vs usdm in the question? which b18c motor would be best for my project???
    please help, thanks in advance! :D

    lates
    nash
  2. pissedoffsol

    pissedoffsol RETIRED

    it is.

    civics changed in 99 to OBD2b
    however, tegs didn't do so until 2000.

    usdm/jdm doesn't matter

    getting a 2000 gsr will be easier
  3. nash

    nash Senior Member

    ok, that because earilier motors are odb1?
    what kind of extra wiring is needed to swap a 99 or sooner in my civic?
  4. pissedoffsol

    pissedoffsol RETIRED

    there are two versions of obd2

    >92 obd0
    92-95 = obd1

    96-98 civics, 96-99 tegs obd2a
    99+ civics, 00+ tegs obd2b

    using a 2b motor in your 2a car require some more wiring depending on what you have for wire harnesses and ecus
  5. AllMotorMonster

    AllMotorMonster Senior Member


    Let me elaborate a little on this.

    As for the GSR it goes as follows:

    92-93 is OBD1, but it is a P61 which is VERY similar to the P30 from the delSol of 94-95

    94-95 is also OBD1, and is nothing like the previous years because the new GSR had a dual runner manifold (P72)

    96-99 is OBD2

    00-01 is OBD2b and has the immobilizer in the ECU.

    HTH.
  6. pills_PMD

    pills_PMD Super Moderator

  7. nash

    nash Senior Member

    so do 99 b18 c 1 have the immobilizers in the ECU's?

    from the posts they apply to both jdm and usdm right?
  8. AllMotorMonster

    AllMotorMonster Senior Member


    No, the 96-99 does not have it, BUT the 96-99 will NOT plug in a 99-00 (OBD2b) Civic harness.

    You need the 00-01 (OBD2b) GSR ecu.

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