Technical Information OBDI Engine Reference

This is a list of suitable ECUs by engine type, listed in order of ECU preference.  Note that some ECUs will be a different generation from the wiring in the vehicle which the engine was originally sold in, and will require an adapter harness (note 6) and/or OBDI ECU swap (note 7). Some vehicles may need additional wiring for the VTEC and knock circuitry. Generally any vehicle after 1995 will require an adapter harness and any F or H series engine will require an ECU swap.

Also see K-Series engine reference

1989-2001

Engine Year Country VTEC IAB Knock Suitable ECUs Hondata Systems Notes
B16A 89-91 JDM Y   Y P28,P30,P72,P61,P08J,P30J,P72J s300 2,5,9,10,18
B16A 92-95 JDM Y   Y P28,P30,P72,P61,P08J,P30J,P72J s300 2,18
B16A 92-95 US Y   Y P28,P30,P72,P61,P08J,P30J,P72J s300 2,18
B16A 99-00 US Y   Y P28,P30,P72,P61,P08J,P30J,P72J s300 2,6,7,18
B17A 93 US Y   Y P28,P30,P72,P61,P08J,P30J,P72J s300 2,18
B18A 92-93 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,18
B18B 94 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,18
B18B 95 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,18
B18B 96 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,6,7,18
B18C 94-95 US Y Y Y P72,P28,P30,P61,P72J,P30J,P08J s300 2,4,18
B18C 96-00 US Y Y Y P72,P28,P30,P61,P72J,P30J,P08J s300 2,4,6,7,18
B18C5 97-01 US Y   Y P72,P30,P28,P61,P72J,P30J,P08J s300 2,6,7,18
B18CSpecR 96-00 JDM Y   Y P72,P30,P28,P61,P72J,P30J,P08J s300 2,6,7,18
D15B 92-93 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,3,18
D15B 96 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,3,6,7,18
D15B 92-95 JDM       P72,P30,P28,P61,P08J,P30J,P72J s300 2,3,18
D16B 96-99 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,6,7,18
D16A1 88-89 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,7,9,18
D16B 99-00 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,6,7,18
D16Z 92-95 US Y     P28,P30,P72,P61,P08J,P30J,P72J s300 2,18
D16Z 96-99 US Y     P28,P30,P72,P61,P08J,P30J,P72J s300 2,6,7,18
F22 90-95 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,3,7,11,18
H23A 92-95 US       P74,P75,P06,PR4,P28,P30,P72,P61 s300 2,3,7,18
H22A 92-95 US Y Y

Y

P72,P28,P30,P61,P08J,P30J,P72J s300 2,4,7,18
H22A 96-00 US Y Y

Y

P72,P28,P30,P61,P08J,P30J,P72J s300 2,4,6,7,8,18
D17 (all) 01-05 US Y     PRB,PRC,PRD,PNF,PND,PPA K-Pro 16,17
F20c 00-03 All Y   Y PRB K-Pro 16,17
F22c 04-05 All Y   Y PRB K-Pro 16,17
F22c 06-09 All Y   Y PZX FlashPro  

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. PRB-A13 ECU's are not or K-Pro compatible (2005 RSX).
  18. The s300 will not work with a JDM case ecu.