hey i have a 98 civic cx with a b18-b1 swap...i bought a gsr head and want to put this in... the kid gave me a ecu with this head but i realized its a obd1 ecu it was in a 92 egg swap so i dont think it will work... i need to know what i need for an ecu or if i can keep the one thats in my car already because its a obd2 ls swap already.. i was going to hook my vtec up to a shift lght but would like to hook it up like it is suposed to be.. this civici has a 99 b16 si tranny with a b18-b1 block and trying to hook up the b18-c1 head what do i need and how do i do it thanks

 

What ECU are you currently running in your car?

If the new ECU is OBD1, just get a OBD2a-OBD1 conversion harness. This may cause you to fail emissions, depending on where you live.

A GSR head on a LS block is a LS/VTEC set-up. You need a LS/VTEC conversion kit, wiring from the ECU to the vtec solenoid, and possibly a few other things. I would research this swap a little more prior to starting it if I were you.

 

I have the 99 ls ecu installed now.. Where would I buy the conversion harness at?? Yeah I am purchasing a obd2 gsr comp because it won't pass inspection where I live because it needs to be plugged in.. So I need the 99gsr ecu.. Any other thoughts would be great thank u

 

the vtec solenoid and wires in your harness for the solenoid?