hey guys, I got a 91 n/A 300zx with a knock sensor code coming up. I found some info about re-routing the sensor to the upper plenum and had my mechanic do just that. Unfortunately it didnt take care of the problem, but not sure why. I also just replaced the plugs on the car and the car still revs pretty course feeling (and a bit course sounding). Does anyone have any other ideas what I can do besides installing the knock sensor in the manuf recommended spot (to the tune of $2K). I so want this Z to run as smooth as it did a few months ago before the sensor went bad. Any suggestions would be welcome. Thanks!!