finaly fixed lost mileage.
I wanted to wait to see if it was just a fluke, but I got the EGR fixed after I started occasionaly getting EGR codes.
I went from 24-25mpg highway regularly to first run 29.5, followed by a confirmation run of 28.6mpg at 70-75mph for about 170miles, and 22.5 (1 run) arround town.
What was wrong was the line was burned through and clogged, the valve was full of carbon. This leads me to think that the loss of mileage when we switched to E10 was just a coincidence and was the problem with my EGR beginning to show up. I am now at or about the mileage I was getting before E-10 with no mods.
Unfortunately a clip was left off of the air cleaner during the repair and it rubbed the AC line cutting a hole in it. With temperatures soon approaching 3 digits I'm gonna now have to get that fixed.
|