the ECU for the engine is P08 - may be hard to find since it is JDM - a P28 from 92-95 Civic EX will work - both of those are OBD1 ECUs - if you have a PM6, you must be running OBD0 and in order to use the VTEC ECU you would need to convert to OBD1 - or, you could rig up a rpm switch to control the VTEC with the OBD0 ECU