I have gathered some ECU pinouts over the past years which I like to share with you. The first PGMFi models starting from late 80’s to early 90’s typically have OBD0 ECU’s, the mid 90’s models feature OBD1 ECU’s and late 90’s came the OBD2a followed by similar style, but differently pinned OBD2b ECU’s.
If you have any questions are requests regarding pinout information (not persee limited to ECU connectors), leave a message here. I see if I can be of any help.
- OBD0 4th gen Civic, 2nd gen CRX (typically ED / EE chassis codes)
- OBD1 5th gen Civic, 3rd gen CRX (typically EG chassis codes, but also EJ1 and EJ2)
- OBD1 V6 1th gen NSX (and similarities with Legends from that era)
- SFi, a sort of OBD2a but not wat everybody is used to, found on 6 th gen EU Civic, but also on others outside North America (EJ9)
- OBD2a, found in the early 6th gen Civic (EK pre facelift)
- OBD2b, ound in the later 6th gen Civic (EK facelift)
3 replies on “ECU Pinouts”
intento fabrocar un alambrado alldata B y D series con lijeros cambios de plogas para poder ajustar en D15 D16 y B20 B16 etc con el mismo harnes la mi proyecto es quitarle cable ala ecu y aserlo un poco mas versatil eliminando el 50% de alambre algo tipo directo estoi confundido un poco con el astillado directo sin escalas ni tantos plugs and play de swtich dash board ecu harnes motor conosco un poco sobre la torre de choque y estoi practicando el power ground 0v-0.5v+12-12v.0v conosco un poco sobre la ecu trato de poder sinplifica del motor a ecu y poder aser que el harnes cada que ensienda elsweitch se auto calibre tratandpo de no meter chips en la ecu aserlo un poco mas dificil pero sin usar nada de cable OEM… desde pin a pin sin mayn relay OEM con un sub jumper de reley a 12v sin dos actuadores con un poco mas de potencia en gasolina y en sensor de Oxigeno primario y secundario disculpen saven si el ponerla modo BENCH ECU STAR como la pr4 pm7 pm6 etc y igual que p28 y p75 y p06 creen que pueda aser que la ecu se auto calibre cada que abra y cierre el switch :__ gracias
Hey man,
Self calibrating is really hard and takes a lot of experience, both engine side and algorithm side. I have seen some terrible ‘Mona Lisa’s’ as someone once called it to me (Sylvester, this is you if you ever read this 😉 ). The ecu maps turned out into wild abstract paintings and did not return well behaved maps for safe and optimal engine management. That said, I do like it when people take on such challenges. So I wish you good luck! And hope I did not miss any questions (had to Google translate ;-D ).
HOY EMPESARE DIRECTO SIN ESCALAS SI¡N ALAMBRE ADDENTRO PIN A PIN DESDE CERO ENCENDIENDO EN BENCH MI PW0 EN Y8 CIVIC 00 DESPUES `P28 CHIP MUGGEN LUEGO LA P2P
A 13 CABLES SIN CHIP OJALA FUNCIONE MANDAME INBOX POARA CONTARTE UN POCO AVER SI PUEDES ALLUDARME SOI DE MEXICALI BC MEXICO .
MAKINGDREAMSBUILTWIRE !!!