im confused do you have the vtec wiring harness?? or are you just splicing some wires from the solenoid to your p28 ecu? for it to run... cause i bought a vtec wiring harness(hooks up to the vtec solenoid then it goes through the firewall to the p28 ecu) for about 100 bucks from a local shop here in texas) i went from a non vtec to a vtec in my 93 civic so what intake manifold do you have on your y8 cause i have my stock d15b7 intake manifold on my y8....let me know