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    ECU Part Numbers:

    Updated 07/06/02


    Use this list to make sure you get the correct ECU for your car. Double check with a dealer is possible.
    Some dealers will not give out part numbers because you might go elsewhere.
    This means thier prices are too damn high!

    ECU part Numbers for FWD SOHC Federal and California Emmisons
    9605.1 – 9705.3 : MD339760
    9706.1 – 9805.3 : MD347252
    9806.1 - - - - - - : MD360161

    Manual and Automatic Engines use same ECU

    ECU Part Numbers for FWD DOHC Federal emmisions ONLY
    9004.1 – 9205.3 : MD159963
    9206.1 – 9305.3 : MD190662
    9306.1 – 9505.3 : MD192591
    9506.1 – 9604.3 : MD319638
    9605.1 – 9705.3 : MD339761
    9706.1 – 9805.3 : MD347251
    9806.1 - - - - - - : MD360162

    Automatic and Manual transmissions use same ECU

    ECU Part Numbers for FWD DOHC California emmisions ONLY!
    9004.1 – 9205.3 : MD159962
    9206.1 – 9305.3 : MD188204
    9306.1 – 9505.3 : MD192590
    9506.1 – 9604.3 : MD319638
    9605.1 – 9705.3 : MD339761
    9706.1 – 9805.3 : MD347251
    9806.1 - - - - - - : MD360162

    Automatic and Manual transmissions use same ECU

    ECU Part Numbers by year for DOHC AWD TT CAL emmisions
    9004.1 – 9205.3 : MD159965
    9206.1 – 9305.3 : MD188205
    9306.1 – 9505.3 : MD192588
    9506.1 – 9604.3 : MD319639
    9605.1 – 9705.3 : MD339762
    9706.1 – 9805.3 : MD347250
    9806.1 - - - - - - : MD360163

    ECU Part Numbers by year for DOHC AWD TT FED emmisions
    9004.1 – 9205.3 : MD159966
    9206.1 – 9305.3 : MD190663
    9306.1 – 9505.3 : MD192589
    9506.1 – 9604.3 : MD319639
    9605.1 – 9705.3 : MD339762
    9706.1 – 9805.3 : MD347250
    9806.1 - - - - - - : MD360163

    Other ECU Numbers

    MD159961 1991 Jap GTO N/A Auto, AWD, AWS (Thanks to Mcac & Oleg Reznik)
    MD159961 1993 Jap GTO N/A Auto, AWD, AWS (Thanks to Mcac & Oleg Reznik)


    Note to interpret dates (9806.1 used as example)
    1st and 2nd (2) digits are year so this is 1998
    3rd and 4th (2) digits are month so this is June (6th month)
    5th digit is 1/3rd of month (I think) so 1 = 1st 10 days of month


    Important information about buying a replacement or repaired ECU:

    You do not have to install the exact same ECU part number in your car BUT you do have to install a new ECU
    with the same E2T number!
    Pull out the ECU and under the part number on the label there will be a number starting with E2T.
    Those numbers on your original ECU have to match your new ECU.

    Thanks to Hans at Ground Zero Performance for this information.

    Underhood1

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