yeah, it's a vtec.
I just swapped in a z6 into a 89 crx. I have no cel but idles a bit rough and sputters when given accelerate. The cel works. I noticed I have one plug and two places to put it. (sounds like this past weekend) anyways, it has a green and red wire both with white stripe. does it plug on side of head or at thermo housing? any help would be great.