Continuing saga of my daughter's Sentra GXE(1999, not 2000). AFter cleaning the distributor from oil, it ran for the past week just fine. Butyesterday, it died again after running rough for a few minutes. I thought maybe the oil has again contaminated the distributor again, but, nope, it was dry. The check engine came up and it shows code P0340 CMP sensor (CAMshaft position sensor). So where is this thing located in a GA16DE engine? Can someone tell me where it is or send me a JPG pic to cmdrdata at mail dot com? Thanks.