Originally posted by dawrenn
I have heard that but I don't feel any power loss at all, I know that it would not be that much of a loss but I do not think that it is affected by it. :dunno: Does anyone know if you can tell if Vtec is not engaging? if so how much of a power loss is it?
you'll feel it bog down as the RPMs increase past vtec engagement point. it's a noticable difference, especially when you move near redline...you've just got no power at all.
if vtec fails to engage, you'll throw a code. but of course, you won't know that, because your light is already on from the o2 sensor.
as i said above in response to fook, having the MIL on for an o2 sensor problem will not prevent vtec from engaging.