Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
Error code and better fuel mileage?
Posted 26 November 2011 - 05:37 PM
I decided to drive it awhile to see what kind of adverse affects this potential problem has on fuel mileage. Well? Ran two tanks and got 30.5 MPG and 31 MPG. That's the best this car has ever gotten! Now I kind of hate to "fix" it, but I'll have to sometime to pass NY emissions inspection.
I don't know what the car's computer thinks the rear OX sensor is, or is not doing - but I kind of like it.
I had a OX sensor go bad in my 1979 Datsun 280ZX and when that happened, mileage dropped from 24 MPG down to 16 MPG and the tailpipe got covered with black soot.
On this Impreza, I can't imagine what could happen to make it jump up in mileage instead of down with this so-called malfunction.
Posted 27 November 2011 - 12:13 PM
I have replaced O2 sensors and gotten worse mileage with the new one in.
Id be tempted to take it in for inspection, as is, just to see what they come up with.....
Posted 27 November 2011 - 01:01 PM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users