Rywire ECU Adapters

OBD0 to OBD1 ECU Conversion Harness

Converts any:
-1988-1991 Honda CRX - (HF, Si or MPFI converted only)
-1988-1991 Honda Civic - (Ex, Si or MPFI converted only)
-1990-1991 Acura Integra
to run any OBD1 1992-1995 ECU.

Requirements:
- This conversion harness is made for 5 speed application, not automatic.
- OBD1 ECU
- OBD1 Distributor
- 4 wire O2 sensor.

What you get:
- Instruction available online. (see below)
- Quick Disconnect for easy firewall insertion.
- Color Coordinated for easy installation.
- Full Technical Support

OBD0 to OBD2a ECU Conversion Harness

Converts any:
-1988-1991 Honda CRX (HF, Si or MPFI only)
-1988-1991 Honda Civic (EX, Si or MPFI only)
-1990-1991 Acura Integra
to run any OBD2a ECU.

Requirements:
-This conversion harness is made for a 5 speed chassis.

You will need:
-OBD2a JDM ECU (Unless selecting the USDM option - +$20)
-OBD1/OBD2 Distributor
-4-wire O2 sensor

What you get:
-Detailed Instructions.
-Quick Disconnect for easy firewall insertion.
-Color Coordinated for easy installation.
-Full Technical Support

OBD1 to OBD1 ECU Conversion Harness

Converts any:
- 1992-1995 Acura Integra
- 1992-1995 Honda Accord (4 Cylinders Only)
- 1992-1995 Honda Civic
- 1992-1995 Honda Delsol
- 1992-1995 Honda Prelude
to run optional VAFC, SAFC, AVC-R, etc... without cutting into your factory harness.

Requirements:
-This conversion is primarily made for 5 speed chassis.

You will need:
- Direct Replacement, No Modification Required

What you get:
- Full Technical Support
- Instructions available online.

OBD1 to OBD2a ECU Conversion Harness

Converts any:

- 1992-1995 Acura Integra
- 1992-1995 Honda Accord (4 Cylinders Only)
- 1992-1995 Honda Civic
- 1992-1995 Honda Delsol
- 1992-1995 Honda Prelude
to run any OBD2a ECU.

Requirements:
-This conversion is primarily made for 5 speed chassis.

You will need:
- OBD2a ECU
- Secondary 4-wire O2 sensor. (USDM verison)

What you get:
- Detailed instructions (USDM verison)
- Full Technical Support

OBD1 to OBD2b ECU Conversion Harness

Converts any:
- 1992-1995 Acura Integra
- 1992-1995 Honda Accord (4 Cylinders Only)
- 1992-1995 Honda Civic
- 1992-1995 Honda Delsol
- 1992-1995 Honda Prelude
to run any OBD2b ECU.

Requirements:
- This conversion is primarily made for 5 speed chassis.

You will need:
- OBD2b ECU

USDM Version:
- Rywire offers the USDM pigtail for USDM ECU's which require the secondary O2 sensor. This harness also bypasses the Crank Flux sensor. Instructions are included with this for the secondary O2 pigtail wire colors.

JDM Version:
- The JDM version needs no instructions, it is plug and play.

USDM OBD2b Immobilizer issues:
-Most OBD2b USDM ECU's are equipped with immobilizers (disables ecu) which require a matching ignition switch and transponder unit. If your ECU is equipped with this and you do not have the matching ignition and transponder, it is HIGHLY recommend that you use a different ECU. Honda/Acura tends to charge an lot to remake those 2 components ($700-$1200)

OBD2a to OBD1 ECU Conversion Harness

Converts any:
- 1996-1999 Acura Integra
- 1996-1998 Honda Civic
- 1996-2001 Honda Prelude
- 1996-1997 Honda Accord
To run any OBD1 1992-1995 ECU.

Requirements:
-This conversion is primarily made for 5 speed chassis. 

You will need:
-OBD1 1992-1995 ECU

What you get:
-Full Technical Support

OBD2b to OBD1 ECU Conversion Harness

Converts any:
- 2000-2001 Acura Integra
- 1999-2000 Honda Civic
- 1998-2002 Honda Accord
- 1999-2002 Honda CR-V
To run any OBD1 1992-1995 ECU.

Requirements:
-This conversion is primarily made for 5 speed chassis

You will need:
-OBD1 1992-1995 ECU

What you get:
-Full Technical Support 

OBD2b to OBD2a ECU Conversion Harness

Converts Any:
- 2000-2001 Acura Integra
- 1999-2000 Honda Civic
- 1998-2002 Honda Accord
To run any OBD2a ECU.

Requirements:
-This conversion is primarily made for 5 speed chassis

You will need:
OBD2a ECU

What you get:
-Full Technical Support

OBD2a to OBD2b ECU Conversion Harness

Converts Any:
-1996-1999 Acura Integra
- 1996-1998 Honda Civic
- 1996-2001 Honda Prelude
- 1996-1997 Honda Accord
To run any OBD2b ECU.

Requirements:
-This conversion is primarily made for 5 speed chassis, but can be constructed for automatic transmissions, please see the automatic harnesses or contact Rywire with the contact us page.

You will need:
-Non-Immobilizer equipped OBD2b ECU

What you get:
-Full Technical Support