Well, she started actually having a few misses yesterday. The missing is as random as it gets. When I'm sitting at idle (both in Park and in Drive) every 30 or so seconds I'll get a "hiccup" from the engine (A solid miss causing the car to shake a little) Also be advised that sometimes the car will go 5 minutes without having a hiccup at all. I'm planning on running Techron later tonight to see if it fixes the problem. Any other thoughts? Do bad sensors cause intermittent random missing? (ie; temp sensors?)