Decoding ECU serial numbers

[drmikey]

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

 

[posol]

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.

 

[posol]

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

 

[posol]

http://www.pgmfi.org/twiki/bin/view/Librar...DefinitionCodes

 

[drmikey]

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

 

[scottp11]

Originally posted by pissedoffsol@Sep 24 2005, 01:40 AM
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.

[post=559708]Quoted post[/post]​

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

 

[posol]

good poitn...
https://hondaswap.com/forums/index.php?showtopic=61473

posted

 

[reckedracing]

you should combine the above info with this refrence section thread...

https://hondaswap.com/forums/index.php?showtopic=7991

 

[formby]

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

 

[posol]

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

 

[formby]

sweet you're the mang

 

[joker01]

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

 

[Valleyboy4life]

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

I know this is a really old thread but...did u ever figure that ECU out?? Im working on a car and it has almost the same last 3 digits. What does the "T" stand for?? If anybody can let me know please do.

Btw, I'm working on a 14 Accord and they gave me the "T" ECU and ive never seen it.