Hondata K-Pro V4 (05-06 RSX chassis ONLY)

This is a Hondata modified 2002-2004 RSX TYPE-S ECU and an adapter harness for the 05-06 Acura RSX Hondata makes hardware modifications to the 2002-2004 ECU enable it to work with the different sensors and actuators found on the 2005-2006 ECU. After these modifications, the ECU will not function correctly on a 2002-2004 RSX. Hondata only sells adapter harness with the modified ECU. An unmodified 02-04 ECU with adapter harness (with or without KPro) will not work on a 05-06 RSX without the internal ECU modifications performed by Hondata. The 05-06 K-Pro is only certified to work in an 05/06 RSX. Engine swaps using an 05-06 RSX engine and gearbox into another chassis are not supported with the 05/06 K-Pro and adapter harness. A primary oxygen sensor from the 02-04 RSX or 02-05 Civic Si must be used. The 05-06 RSX O2 sensor will not work. Some sensors must be disabled to eliminate errors generated by the ECU. The speed sensor spins about 100 times faster on the 05/06 RSX gearbox as compa