Hi, I have a 98 V70, recently I was spraying injection cleaner into my intake and after the auto stalled out a couple times, I found later while driving that my speedometer would work on occasion. I also found that the cruise control didn't work either. I connected the obdII and cleared my system, for a while this seemed to eliminate this problem however, on occasion the problem returns. One other thing which may be related or perhaps not, I had my ignition switch replaced about a year ago, on occasion I find that when I first put in the key and turn it (starting engine) my window control, radio would not come on. I later discovered that the key advanced too far on the switch and kept these items from working. I would like to know also what would be best way to lube the ignition switch to prevent a possible switch malfunction or breakage? Would it be best to use a graphite powder? Thanks!