Untuned_SH4
10-30-2006, 09:48 PM
I am not sure if this thread belongs in Engine Management or General Tech or Whatever (so if it gets moved, I won't complain).
With all the questions on "What kind of ECU do I have" popping up lately, I thought it would be a good idea to post the info in a single page instead of having this info off-site (where said site may disappear).
A Honda ECU will always be read like so:
37820-P**-*0*, where -
37820 Identifies the part as a Honda ECU;
P** Identifies the Part Match of the Engine Components; and
*0* Identifies the Revision. This also identifies if the ECU is for an Automatic or Manual transmission car without opening the actual case - and if the ECU was manufactured for a car in a specific country.
Also, manual ECUs will usually have a middle digit of 0, usually going no higher than 3 or 4; Automatic ECUs will usually have a middle digit of 5 and above, but there are exceptions.
For example: My ECU is 37820-P08-J50.
So, according to the list, my ECU is for a Japanese Civic running a JDM D15B SOHC VTEC with an automatic transmission.
*Special Thanks to jdmcivic.com, rywire.com, and honda-tech.com for the info:
These ECUs are OBD-0:
PM5 - Civic 1.5l PGM-DPFI (DX/LX) - D15B2
PM6 - 88-91 Civic/CRX SOHC Si - D16A6
PM7 - Civic 1.6 DOHC ZC
PR3 - Civic 1.6l DOHC VTEC (Si) - B16A
* - PR3-J00/J51 Integra B16A OBD-1 ECU
PR4 - Integra LS/GS - D16A1 (87-88) & D16A3 (88-89)
5spd = 000, 001, 002, A00, A01, A10, J00, J01, C01, C00
Auto = J51, J50, A50, A51, 901, A60, C50, C51, X30, A80, L50, L51
These are OBD-1 ECU#s:
P05 - Civic CX - D15B8
P06 - Civic DX - D15B7
P07 - Civic VX - D15Z1 SOHC VTEC-E
P08 - JDM Civic (EG4) 1.5l SOHC VTEC - D15B
P28 - Civic EX/Si 1.5l SOHC VTEC - D16Z6
*Note that this ECU has also been used with the D16Z6 and the B16A in the US.
P30 - DelSol Si/Civic SiR (B16A DOHC VTEC)
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 - Civic DX - D16Y7
*Also found in the Civic HX/LX
P2J- Civic Ferio Vi/VTi (EK4) - JDM OBD-II D15B
*Note that this is the native ECU for the ODB-2 D15B 3-stage VTEC engine. However, this engine comes only with a 5-speed manual or Honda's Multi-matic.
P2N - Civic HX Coupe - D16Y5 SOHC VTEC-E
P2P - Civic EX Coupe - D16Y8 SOHC VTEC
P2T - Civic Si - K20 DOHC i-VTEC
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
Country of Target Manufacture (where is the car going?)
J = Japan
C= Canada
A=USA
G=Europe
The Final Digit indicates the version of the ECU.
Untuned SH4
With all the questions on "What kind of ECU do I have" popping up lately, I thought it would be a good idea to post the info in a single page instead of having this info off-site (where said site may disappear).
A Honda ECU will always be read like so:
37820-P**-*0*, where -
37820 Identifies the part as a Honda ECU;
P** Identifies the Part Match of the Engine Components; and
*0* Identifies the Revision. This also identifies if the ECU is for an Automatic or Manual transmission car without opening the actual case - and if the ECU was manufactured for a car in a specific country.
Also, manual ECUs will usually have a middle digit of 0, usually going no higher than 3 or 4; Automatic ECUs will usually have a middle digit of 5 and above, but there are exceptions.
For example: My ECU is 37820-P08-J50.
So, according to the list, my ECU is for a Japanese Civic running a JDM D15B SOHC VTEC with an automatic transmission.
*Special Thanks to jdmcivic.com, rywire.com, and honda-tech.com for the info:
These ECUs are OBD-0:
PM5 - Civic 1.5l PGM-DPFI (DX/LX) - D15B2
PM6 - 88-91 Civic/CRX SOHC Si - D16A6
PM7 - Civic 1.6 DOHC ZC
PR3 - Civic 1.6l DOHC VTEC (Si) - B16A
* - PR3-J00/J51 Integra B16A OBD-1 ECU
PR4 - Integra LS/GS - D16A1 (87-88) & D16A3 (88-89)
5spd = 000, 001, 002, A00, A01, A10, J00, J01, C01, C00
Auto = J51, J50, A50, A51, 901, A60, C50, C51, X30, A80, L50, L51
These are OBD-1 ECU#s:
P05 - Civic CX - D15B8
P06 - Civic DX - D15B7
P07 - Civic VX - D15Z1 SOHC VTEC-E
P08 - JDM Civic (EG4) 1.5l SOHC VTEC - D15B
P28 - Civic EX/Si 1.5l SOHC VTEC - D16Z6
*Note that this ECU has also been used with the D16Z6 and the B16A in the US.
P30 - DelSol Si/Civic SiR (B16A DOHC VTEC)
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 - Civic DX - D16Y7
*Also found in the Civic HX/LX
P2J- Civic Ferio Vi/VTi (EK4) - JDM OBD-II D15B
*Note that this is the native ECU for the ODB-2 D15B 3-stage VTEC engine. However, this engine comes only with a 5-speed manual or Honda's Multi-matic.
P2N - Civic HX Coupe - D16Y5 SOHC VTEC-E
P2P - Civic EX Coupe - D16Y8 SOHC VTEC
P2T - Civic Si - K20 DOHC i-VTEC
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
Country of Target Manufacture (where is the car going?)
J = Japan
C= Canada
A=USA
G=Europe
The Final Digit indicates the version of the ECU.
Untuned SH4