SNEEZIN WRX
Junior Member
i have a 93 civic ex OBD1 and i'm putting a 97' B18c1 OBD2 in it i am using my stock wiring harness..the only thing is that i don't know which ECU i need to use..someone told me i needed to use a OBD1 GSR ECU but when i look at the ECU reference chart on this website it says that from 94 - 01 they all use the P72 so does that mean that all GSR ECU's are the same regardless of OBD and that i can use the one thats coming with my swap??