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Decoding ECU serial numbers

Discussion in 'ECU's, Electronics, and Tuning' started by drmikey, Sep 24, 2005.

  1. drmikey

    drmikey Junior Member

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    Hi all,

    Does anyone know how to interpret the an ECU serial number. I am after a JDM P73 ECU and have seen a few on eBay but need to know if they are definitely JDM and not USDM/UKDM (I'm doing a JDM B18C conversion on my civic here in the UK).

    The three ECUs I've found have the following numbers.

    37820-P73-003 967-114588
    37820-P73-A04 1292-101931
    37820-P73-A03 987-200207


    Hope someone can help.

    Cheers

    Mike
     
  2. pissedoffsol

    pissedoffsol RETIRED

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    in 88-91 ecus (PM6, PR4, PW0, PR3, PM7):
    5spd = 000, 001, 002, A00, A01, A10, J00, J001, C01, C00
    Auto = J51, J50, A50, A51, 901, A60, C50, C51, X30, A80, L50, L51

    92-5 ECUs (P28, P30, P61, P72, P91, P08)
    5spd = 000, 001, 002, 003, A00, A01, A02, C00, C01, C02, J00, J01, J02, G00, G01
    Auto = J50, J51, 901, 902, C50, C51, C52, A50, A51, A52, L50, L51, G51

    96-00 ECUs (P2E, P2P, P2J, P72, P73)
    5spd = 000, 001, 002, 003, A00, A01, A03, C00, C01, C02, C03, J00, J01, J02, A11, C11
    Auto = A70, A71, A72, A91, A92, C70, C71, C72, C91, C92

    from the patterns we can learn the following:
    first letter = country of orgin
    J = Japan
    C= Canada
    A=USA
    G=Europe
    second digit, if 5, 7, 9 then ecu is auto usually
    third digit denotes the version/variation
    L = California emissions or typically high altitude states as well.
     
  3. pissedoffsol

    pissedoffsol RETIRED

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    37820-P73-003 967-114588 -- JDM
    37820-P73-A04 1292-101931 --USDM
    37820-P73-A03 987-200207 --USDM
     
  4. pissedoffsol

    pissedoffsol RETIRED

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  5. drmikey

    drmikey Junior Member

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    Cheers mate. I'll go for the 003 one then.

    There are a few P73s on eBay on sale in the US that are claiming to be JDMs. I suppose they just dont know what they are talking about then?

    mike
     
  6. scottp11

    scottp11 The Seniorest Member....

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    Is all this in the reference section, cuzz I didn't see it. This is some really good information! :worthy:
     
  7. pissedoffsol

    pissedoffsol RETIRED

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  8. reckedracing

    reckedracing TTIWWOP VIP

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  9. formby

    formby learning in progress

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    what are those numbers for?
    ....when will burned my chips he asked me about those numbers....i never gave the numbers to him...will the chips work or do i need to input those numbers in turbo edit in order for the chip to work?...

    i am not trying to thread jack i just though id ask
     
  10. pissedoffsol

    pissedoffsol RETIRED

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    chips don't really matter, unless you're after a "JDM p72 program" as the oem maps are slightly different.
     
  11. formby

    formby learning in progress

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    sweet you're the mang
     
  12. joker01

    joker01 Member

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    was just reading this thread still got a prob finding out the info on my ecu ama post the pic hope i aint thread jacking
     

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