OBD2B Civic/Integra AUTO to OBD1 JDM GSR AUTO Conversion Harness

OBD2B Civic/Integra AUTO to OBD1 JDM GSR AUTO Conversion Harness
Item# OBD2BCIVINT-OBD1JDMGSR-HARN
$239.00
OBD2B Civic/Integra AUTO to OBD1 JDM GSR AUTO Conversion HarnessOBD2B Civic/Integra AUTO to OBD1 JDM GSR AUTO Conversion Harness

HA Motorsports ECU jumper harness for installing a JDM OBD1 GSR Automatic (4-plug) ECU into OBD2B 99-00 Civic or OBD2B 99-01 Integra with automatic transmission and B18C1/GSR engine. Uses all new OEM connectors for OE quality fitment. HA Motorsports ECU jumper harnesses are constructed using cross-linked automotive TXL wire that exceeds OEM specifications and is extremely durable.

    This harness is designed specifically for use in these applications:

  • 1999-2000 Civic chassis with a B18C1/GSR engine AND auto B series transmission swap. Use the JDM OBD1 GSR/P72 "4-plug" ECU. Please note the OBD1 ECU will NOT communicate with OBD2 scan tools / code readers and therefore will not pass emissions testing in this vehicle.

  • 2000-2001 Integra chasses with a B18C1/GSR engine and auto B series transmission. Use the JDM OBD1 GSR/P72 "4-plug" ECU. Please note the OBD1 ECU will NOT communicate with OBD2 scan tools / code readers and therefore will not pass emissions testing in this vehicle.


Important: The OBD1 JDM GSR/P72 ECU is NOT able to be chipped/modified/etc. like the USDM P72 ECU's, therefore we recommend this setup only when using a stock or nearly stock B18C1 engine. If you will be modifying your engine, turbocharging, tuning, etc. we recommend our jumper harness setups that use a separate transmission control unit along with a separate chipped/tunable OBD1 ECU.

All HA Motorsports ECU's, products, and services include a One Full-Year VIP Warranty