I will be swapping the JDM D15b into my 1990 DX Civic Hatch. Which damn ECU do I use? I already have the distributor out of a 1991 si! Please someone clear this up! I heard that tyhe P08 which is the ECU that came with the engine is OBD1. The distributor I have is OBD0. Is there a way to use those two? I would hate to have to buy another distributor. The main reason why is that P08 are pretty cheap compared to the rest. Also the P08 has vtec already? Or will I need something else to kick in the VTEC? I know its a lot of questions but hopefully someone can just run through them really quick!