Does the harness have to be a y8 obd2 harness? Because my vtec doesn't engage. Anyone have a solution or anything? Please let me know so I can fix this problem. The motor is running fine just at 5500 rpm nothing happens and it redlines like a d series motor that is not suppose to have vtec.

 

What car do you have? Year make model trim

 

94 ej1 ex model 2 dr

 

How do you know vtec isn't engaging?

 

Again, if you can redline it and not throw a CEL then VTEC is working.

 

your z6 harness/ecu are correct. no cel= no vtec problems, unless you have low oil pressure.

 

Does the dizzy matter. I'm running a z6 dizzy instead of a y8 dizzy and just only one bolt is screwed on.

 

That sound right to you?

 

for your application, the d15b7 distributor will bolt directly to the head without having to swap your z6 guts to a y7/y8 dist.