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Technical Information OBDI Vehicle Reference
Last Updated a year ago

This is a guide to stock Honda ECUs by vehicle, with a listing of suitable ECUs for that vehicle. Many vehicles require an OBDII to OBDI adapter harness (note 6) and/or ECU swap (note 7).


1989-2002

YearCountryEngineStock ECUSuitable OBD1 ECUsHondata SystemsNotes
CRX SiR89-91JDMB16APW0JP28,P30,P72,P61,P08J,P30J,P72J (OBD1 conversion required)s3002,5,9,10
CRX/Del Sol VTEC93-95USB16AP30P72,P28,P30,P61,P08J,P30J,P72Js3002
Civic SiR89-91JDMB16APW0JP72,P28,P30,P61,P08J,P30J,P72J (OBD1 conversion required)s3005
Civic SiRII92-95JDMB16AP30JP72,P28,P30,P61,P08J,P30J,P72Js3002
Civic/Del Sol DX/S92-93USD15BP06P06,P74,P75,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002
Civic DX92-95JDMD15ZP08JP72,P28,P30,P61,P08J,P30J,P72Js3002
Civic Si/EX/92-95USD16ZP28P72,P28,P30,P61,P08J,P30J,P72Js3002
Civic HX96-99USD15BP2NP74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,3,6,7
Civic Si99-00USB16AP2TP72,P28,P30,P61,P08J,P30J,P72Js3002,6,7
Civic96-99USD16YP2PP72,P28,P30,P61,P08J,P30J,P72Js3002,6,7
Civic96-99USD16_P2EP74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,6,7
Civic99-00USD16_P2EP74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,6,7
Integra XSi89-91JDMB16APR3JP72,P28,P30,P61,P08J,P30J,P72J (OBD1 conversion required)s3005,9
Integra LS/GS92-93USB18APR4P74,P75,P06.PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,3
Integra LS/GS94USB18BP74P74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,3
Integra LS/GS95USB18BP75P74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,3
Integra LS/GS96-01USB18BPR4P74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,3,6,7
Integra GSR92-93USB17AP61P72,P28,P30,P61,P08J,P30J,P72Js3002
Integra GSR94-95USB18CP72P72,P28,P30,P61,P08J,P30J,P72Js3002,4
Integra GSR96-01USB18CP72P72,P28,P30,P61,P08J,P30J,P72Js3002,4,6,7
Integra VTiR92-95JDMB18CP72JP72,P28,P30,P61,P08J,P30J,P72Js3002,4
Integra Type R97-01USB18C5P73P72,P28,P30,P61,P08J,P30J,P72Js3002,6,7
Accord LX/ EX90-01USF22PT3P74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,11
Prelude Si92-95USH23AP14P74,P75,P06,PR4,P72,P28,P30,P61,P08J,P30J,P72Js3002,3
Prelude VTEC92-95USH22AP13P72,P28,P30,P61,P08J,P30J,P72Js3002,4
Prelude96-01USH22AP72,P28,P30,P61,P08J,P30J,P72Js3002,4,6,7,17
Prelude SH96-01USH22AP5PP72,P28,P30,P61,P08J,P30J,P72Js3002,4,6,7,8,17

Notes:

  1. Hondata s100/s200 and Stage 2/3/4 systems are both available for these OBDI ECUs but it is recommended to use the s100 or s200 systems.
  2. Manual transmissions only.
  3. P28,P30,P72,P61 ECUs configured to run non-VTEC.
  4. Secondary intake runner operation will be lost if a P72 ECU is not used.
  5. To use a Hondata system it is required that an OBDI ECU is used. Note an OBD1 distributor must be used.
  6. OBDII to OBDI adapter harness required.
  7. OBDI ECU swap.
  8. Differential control will be lost.
  9. Conversion from OBD1 required (OBD0-OBD1 adapter harness, OBD1 distributor).
  10. 4 wire oxygen sensor must be wired in and used if you wish to run in closed loop.
  11. 94 and 95 Accords have EGR (A11) and the O2 heating (A6) reversed and must be rewired
  12. If this ECU is used with a 6 speed transmission, reverse lockout will not work.
  13. PND A5# can be used only with Automatic transmissions and only reflash programs are available for this ECU.
  14. Use of this ECU is only recommended for motor swaps, as we do not offer any programs for the CRV.
  15. This ECU does not use a wideband oxygen sensor and is not compatible with US or JDM vehicles.
  16. Only Manual ECU's can be used with the K-Pro
  17. Conversion to an OBD1 distributor and some wiring may be required
  18. PRB-A13 ECU's are not reflash or K-Pro compatible (2005 RSX).

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