Horrible gas mileage

spoolinV6

Member
Joined
Dec 20, 2007
For the past few months I noticed I've been visiting the pump quite often...I set the issue aside for a while and now I just can't take it anymore. I came about calculating my gas mileage the other day and it seems I'm getting around 11-12 mpg (car rarely sees highways anymore) which is pretty pathetic. I'm thinking of replacing the o2 sensor since I had a clogged cat a few months back, other than that I'm pretty stumped on this one. Any insight would be appreciated.
 
Running w/ a clogged cat will raise the egt's to a point that the O2 sensor may have taken a hit.
How about some scanner data?
 
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