HA Motorsports OBD2B to OBD1 ECU jumper/conversion harness for installing an OBD1 ECU into an OBD2B chassis. Uses all new OEM connectors for OE quality fitment. All HA Motorsports ECU jumper harnesses are constructed using cross-linked automotive TXL wire that exceeds OEM specifications and is extremely durable. Allows a painless conversion from an OBD2B ECU to an OBD1 ECU. Use this harness to install an OBD1 Manual Transmission ECU into the following vehicles: 2000-2001 Acura Integra with manual transmission - see our note regarding the tachometer wiring for 00-01 Integra when using an OBD1 ECU here. 1999-2000 Honda Civic with manual transmission 1998-2002 Honda Accord 4 cylinder with manual transmission 1998-2001 Honda CRV with manual transmission All HA Motorsports ECU's, products, and services include a One Full-Year VIP Warranty