the mechanic and he said its something related to JDM cars and its not necessary
He is wrong, the P2P needs both also.I asked another mech who works on honda's and he said its not nessecary since I'm using P2P obd2 Ecu, if I was using the P28 then i wire should be hooked up this plug so the vtec kicks in, but now its working fine.
what do u think of what he said?
btw would there be any changes in the intake sound when the vtec kicks in?
when i had my D16y8 i've never heard it kicking in, so i'm curious about this engine and my setup!