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ECU Families:

"Pre-OBD" - Early fuel injection designs

Dual Point - 88-91 (88-95 in Europe) OBD0-ish DPFI Civics

  • PM5 : 88-91 Civic Std / CRX DX (??)
  • PM9 : 88-91 Civic Std / CRX DX (??)
  • P04 : 92-95 Euro EG DXi
  • PW1 : ??-95 Euro Concerto 1.5i

"OBD0 MPFI" (88-91 MPFI *Non*-Vtec Civics, Integras)

The following ECUs all share a common circuit board design(with some minor differences):
  • PG7 : 88-89 Integra (D16A1 - Electronic Advance)
  • PM6 : 88-91 Civic/CRX SOHC Si (1.6l SOHC)
  • PM7 : 89-91 Civic Si DOHC ZC (JDM EF3) (Euro A20A Also reported by Mark Lamond)
  • PP5 : 88-94 inc PP4. Honda Concerto, UK Rover 216, 220, 416, 420, GSi, Gti, ???
  • PR5 : 90-91 JDM Integra ZXi (1.6 sohc)
  • PS9 : 90-91 USDM Civic EX (1.6L SOHC - usually auto)
  • XE5 : 88-91 (dates questionable?) Mugen Race platform (ZC)

"OBD0 MPFI" (88-91 MPFI *Non*-Vtec Prelude/Accord B20A)

  • PK2 : 88-91 Prelude Generation 3 B20A Engine
  • PH3 : 86-89 Accord JDM B20A Engine

The PM8 and PR4 each have unique circuit boards, although their code is mostly compatible with the other ECUs in this family.
  • PM8 : 88-91 CRX HF (Euro ZC also reported)
  • PR4 : 90-91 USDM Integra LS/GS B18A1 (note: OBD1 PR4 exists too)

92-95 "OBD1" Civics and Integras

All 92-95 Civic and Integra ECUs use one of three board designs. Differences in ECUs are often as simple as a different program. Different portions of each "motherboard" can be populated to enable controlling vtec, automatic transmissions or purge solenoids.

  • P07 : 92-95 OBD1 Civic VX (D15Z1) scan (Thanks Katman!) 6 Wire O2 P07 6 Wire O2 P07 6 Wire O2 P07(thanks Deluded / Raver Motorsports)

  • P05 : 92-95 OBD1 Civic CX (D15B)
  • P06 : 92-95 OBD1 Civic DX (D15B) scan (Thanks Katman!)
  • P28 : 92-95 OBD1 Civic Si/Ex (sohc vtec d16z6) scan of auto scan of auto (thanks turboef9) scan of ECU modded by Erick's racing scan of manual ECU USDM/JDM (Thanks Katman)
  • P30 : 92-95 OBD-1 Del Sol? DOHC Vtec Si/EG Si R? ECU (Thanks Katman!)
  • P61 : 92-93 OBD-1 USDM GSR B17A DOHC vtec
  • PR3 : 92-93 OBD-1 JDM Integra RSi/XSi (B16A) ECU
  • PR4 : 92-93 OBD1 Integra RS/LS/GS (DOHC) scan (Thanks Katman!)

  • P72 : 94-95 OBD-1 Integra GSR (1.8L B18C? DOHC Vtec) identify scan funky AT ECU (Thanks Katman)
  • P74 : 92-95 OBD-1 Integra LS/GS (1.8L B18B) scan (Thanks Katman!)
  • P75 : 92-95 OBD-1 Integra LS/GS (1.8L B18B) scan (Thanks Katman!)

  • P08 : 92-95 OBD1 Civic/CRX VTi/VXi (sohc vtec) scan (Thanks Katman!) manual scan manual scan auto scan auto scan (Thanks eg6ajk)
  • P27 : 92-95 OBD1 Euro/Asian Civic (non-vtec 1.6l)
  • P29 : 92-95 OBD-1 JDM Domani (Dohc zc)
  • P54 : 92-95 OBD-1 JDM Domani/1.8l Accord (1.8L B18B DOHC) scan scan (Thanks eg6ajk)
  • P70 : 92-95 OBD-1 Domani (sohc vtec zc - no oil pressure sensor reading)
  • P71 : 92-95 OBD-1 Integra (sohc vtec d16a)
  • P76: 94-95 OBD-1 JDM Integra (sohc zc)
  • P84 : 92-95 OBD-1 JDM Civic ETi (VTEC-E auto)
  • P91 : 92-95 OBD-1 JDM Civic Coupe (sohc vtec 1.6) identify scan (Thanks Katman)

  • P1 J : 96-00 OBD-1 UK manufactured Civic with D14 engines - 75hp or 90hp
  • P1 K : 96-00 OBD-1 UK manufactured Civic with D14 engines - 75hp or 90hp

OBD1 92-95 (ish) Prelude/Accord

Although not quite as similar as the Civic/Integra ECUs of this era, the Prelude + Accord ECUs are clearly from the same design group.
  • P0 A : 94-95 OBD-1 Accord EX
  • P0 B? : 92-95 OBD-1 Accord 2.2L (??? F22B SOHC non-vtec)
  • P0 C : 92-95 OBD-1 Accord 2.2L (??? F22B DOHC non-vtec)
  • PT3 : 90-93 OBD-1 Accord F22A1
  • PT5 : 90-93 OBD-1 EDM Accord F20A7
  • PT6? : 91-93 Accord, non-VTEC OBDI Accord with F22A6 motor (IAB intake manifld)

  • P11 : 92-95 OBD-1 Prelude 2.0i BB3 with F20A4 non-vtec
  • P12 : 92-95 OBD-1 Prelude S F22Aa non-vtec
  • P13 : 93-95 OBD-1 Prelude Vtec (H22A DOHC Vtec)
  • P14 : 93-95 OBD-1 Prelude Si (non Vtec - H23A)
  • P39 : 92-95 OBD-1 JDM Prelude BB4 DOHC Non-VTEC (F22B)

Home.EcuFamilies moved from Home.ConsolidatedEcuList on 19 Feb 2004 - 22:55 by Home.blundar

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