depending on what year engine harness ur using if ur using a 96-98 ex engine harness u gotta use the 96-98 gsr p72 ecu ...99-00 ex harness or 99-00 si engine harness u have to use either the 99-00 si ecu or 99-00 gsr..
i have a 99-00 si ecu if ur looking for one.. t