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Rom Maps

An area to collaborate on all the memory addresses found in ROMs

OBD1 Civic and Integra ECUs

OBD1 Civic Integra ECUs share a lot of features

Memory Locations

Programming Resources

Other OBD1

Everything else OBD1 - usually 66207 based MCUs

Memory Locations

  • P13 - The JDM/USDM H22 (92-95 Prelude DOHC VTEC).

OBD0 Vtec ECUs

OBD0 Vtec ECUs ECUs share a lot of features

Memory Locations

  • PW0 - ROMs based on the PW0 JDM (89-91 CRX/Civic EF8/9 B16A) but also included is some of the Euro PW0 locations.
  • PR3 - ROMs based on the PR3 JDM (89-91 Integra XSi B16A)
  • ASM662 - can be used to assemble and disassemble these ROMs.
  • OBD0 Vtec Routines? - have yet to be written.

OBD0 Multi-Point Fuel-Injected

OBD0 MPFI ECUs share a lot of features

Memory Locations

  • 91 PM6 - ROMs based on the 91 PM6 (USDM CRX/Civic Si w/ SOHC D16A6)
  • 91 PR4_PA? - ROMs based on the USDM 90-91 PR4 with internal PA sensor
  • 90 PR4_no_PA? - ROMs based on the USDM 90-91 PR4 w/ external PA sensor
  • 91 PM7 - Although very similar to the 91 PM6, George Ricketts and others have done a lot of development with the PM7

Programming Resources

External Resources

  • A webpage with some of the ROM locations and formulas is here.

Revision: r1.6 - 12 Apr 2004 - 02:07 GMT - SYnoptic { Edit | Attach | History | More }
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