Ok I got a 90 EK hatch with mini me build I'm doing and let's start out by it's a D15b7 block with D16Y8 head im pretty sure it's a OBDO with pm9 ECU. It starts and runs great with a lil smoke when I get on it tho but runs. Idk how to hook vtec up cause my ECU plugs differ from most I've seen online. Am I gonna have to change the ECU and harness both or can I somehow use this set-up for vtec. Thanks guys for the help!

 

That’s a non VTEC ECU