Unsupported Vehicles

• V6 Hondas have very limited hardware and software support
• K-series Hondas have no support from hardware we make at this time
• 2001+ non-K series Hondas (D17, R18, etc.) have no support from hardware we make at this time
• Automatic Hondas have very limited support. Very little has been done with automatic transmission controls and many tuning packages eliminate the code used to control auto transmissions.

Unsupported ECUs

• Anything pre-1988 probably lacks spark control. There isn’t much if anything available software-wise for these ECUs. You might find 24 or 28 pin EPROMs inside, you might not. Your mileage may vary.
• 1988-1991 DPFI (Dual Point Fuel Injection – Throttle Body Injection) ECUs have zero software support. 90-91 models can be chipped like an OBD1 ECU hardware-wise, but that doesn’t solve the software issue.
• 1988-1989 Civic Si (PM6) and 1988-1991 CRX HF ECU (PM8) require a daughterboard we do not sell in order to be chipped. Use a 90-91 ECU on these model years.
• 1992-1995 JDM GSR Automatic ECUs (hardware design makes chipping them impossible. Auto JDM P30s are ok)
• 1996-2001 ECUs (OBD II – hardware design makes chipping very difficult to impossible, requires surface mount soldering tools and chips no longer available on the market.)
• Prelude ECUs (trivially chippable, but unless you are going to develop the software support, it doesn’t currently exist)
• V6 ECUs from Legend (early models can be trivially chipped, but unless you are going to develop the software support, it doesn’t currently exist)
• NSX ECUs (early models can be trivially chipped, but unless you are going to develop the software support, it doesn’t currently exist)
• Basically any ECU other than an Integra or Civic ECU is not well-supported

This information was last updated 2/4/09 by Dave Blundell.