I had to do something once to observe oil flow through the rocker/cam assembly on a large overhead cam diesel engine.I let it have an hour of charge .
turned the key and the dirty15 cam to life .
as far as I can tell it sounds the same as before ?
is there a simple way to see if the cam and rockers are getting oil ,,checking pressure at vtec solenoid tells me nothing..
plug on the last cam cap?