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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

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    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

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    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

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    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

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    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

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    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

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  7. nash

    nash Senior Member

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    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

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    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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