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"OBD0" is not an official standard like OBD2. It is most usually used to refer to MPFI ECUs made from 88-91 with Electronic Advance Distributors found on OBD0 MPFI cars of this era. Technically, all ECUs made prior to 1988 and all accord/prelude/v6/OBD0 Vtec ECUs of this era are also "OBD0" but due to the drastic differences, they are grouped seperately and referred to as "pre-OBD" ECUs, or another term.

OBD0 ECUs (88-91)

  • PG7 : 88-89 Integra (D16A1)
  • PM6 : 88-91 Civic/CRX SOHC Si (1.6l sohc)
  • PM7 : 89-91 Civic Si DOHC ZC (JDM EF3)
  • PM7 : 89-91 CRX D16A8 , D16A9 ( EDM )
  • PM8 : 88-91 CRX HF
  • PR3 : 89-91 JDM B16A EF8/9
  • PR5 : 90-91 JDM Integra ZXi (1.6 sohc)
  • PW0 : 89-91 JDM/Euro B16A EF8/9 DA6-XSi (DOHC VTEC)
  • PR4 : 90-91 Integra LS/GS (b18a)
  • PS9 : 88-91 4 door civic EX Auto (sohc 1.6)

The PH3 and PK3 ECU shares almost the same PC board.

  • PK2 : 88-91 Prelude Si B20A engine DOHC 140 HP
  • PH3 : 86-89 Accord 2.0Si B20A

These DPFI ECUs were also made during the same time period:

  • PM5 : 88-91 Civic/CRX DX (DPFI D15b)
  • PM9 : 88-91 Civic base model (DPFID15b)

Revision: r1.6 - 07 Apr 2006 - 03:20 GMT - carotman { Edit | Attach | History | More }
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