fouled o2 sensors can kill you gas mileage...

 

Haha actually I'm doing it tomorrow! Hopefully I'll see improvements. And hopefully I don't find any sludge. Oh well, time will tell when tomorrow comes around. Thanks for advice!

 

for me its not a bad o2 sensor it is the fact that i have a big turbo and 550cc fuel injectors

 

yea, that'll definitely put a dent in your mpg....

 

10-26, depending on the mood she's in (440cc injectors at 4bar fp, and a shot o2 sensor

 

On the highway you should be able to get around stock regardless of injector size...if its tuned properly. Off boost the a/f should be around stoich 14.7, so you will not be flowing the extra air of the turbo, therefor fuel consumption should be the same...just more useless info

 

active1331 , I'm not chipped.

 

ya i have not had a chance to get it on the hw and also i just got my car back so im having lots of fun in it. so i guss i have to live with bad milage for now

 

I'm only gettin 21, not to great.

 

I'm getting about 26 mpg using 93 while driving with a lead foot