OK, well I have a small update. After doing some research, I decided it would be worthwhile to clean the egr plate.
I have had the car for about a month. and it has ~162K miles on it and i have averaged about 54mpg. not bad, just nowhere near what I was hoping for from a 5 speed 02 insight.
ON WITH BUSINESS!!!
Here is a step by step guide, if anyone needs it.
EGR Plate Removal/Cleaning - With Pics - Insight Central: Honda Insight Forum
dear lord. one passage was 100% blocked. the other 2 . 85-95%
This was the gasket..
and a nasty PCV Valve...
Well. I am a little embarrassed... I cant believe how bad it got.
MUCH better.
and yes... this the OLD NASTY gasket.
.
Here are the rusults.
This is on, a single loop. With a 10-12 mph wind from the south.
48-58 mph, ~91F after dark (2am, no traffic)
the bright yellow road 289.
