Quote Originally Posted by Tech5 View Post
It does if you use P30 USDM or a P72 USDM so with these two ecu's you need a Knock sensor ....If you use a p28 then it will not which is a favor ECU that most use anyways. So why run a P72 anyways?

Also if his butterfly wire isn't hooked up that could also be a issue


oh Josh, you are so missing the point lol


basically what i meant was even though a p30 and p72 search for knock sensor, it does not affect vtec; from my experiences that is