Make it throw the CEL and CHECK IT LIKE PEOPLE ON HERE HAVE SAID. The CEL in my CRX only comes on when I let it ride in gear to a light (strikingly similar to your car). On my OBD 0 ECU there is a display to check the code via a red blinking light. It blinks the code from the time I turn the car on to the time it turns off. The point is you ARE/DAMN WELL SHOULD BE in the safe loop (no VTEC) if there is a PROBLEM. And there is one. My code is, as people have mentioned in this very thread, for the VSS. I usually buy new parts to check if it was the problem instead of using someone else's old possibly junk parts.