I'm hoping someone can help sheld some light on a little problem. I recently read a couple of posts about a vtec light. I did the mod, hooking the positive from the light to the green with yellow strip wire going into the ecu. One catch, mine had two different green w/ yellow wires. I tested both. One of which made the light come on with the key in the ignition and turned to accessories, once I started the car it went out and never came back on. I reved the car upwards of 6500 and still nothing. Took the wire out and hooked it to the other green w/ yellow wire. Did not come on with key in, and never came on at high revs.

To my knowledge vtec should kick in around 4500, 5500 on some engines. I have a D16Z6 SOHC VTec.

Does anyone have any ideas as to watch I can possiblly check to make absolute sure it is not engaging? What might cause it to go out but NOT display a cel?

All help is greatly appreciated.