141,000 miles. Check engine light just came on. Before that on this drive...noticed an occasional sputter...like there was some interruption in fuel flow. It does seems (without actual data) that I have not been getting typical gas mileage.

 

A friend of mine just had a similar sounding problem with her Honda CRV, and it was the oxygen sensor....and cost big bucks to replace.

 

What are the possibilities here. If it is the oxygen sensor...what's the typical repair cost on this?

 

Thanks.

Edited January 12, 201016 yr by carolinagal
typos

Get the code pulled and we will go from there...

It could be an O2 sensor. I've seen a few fail on those. And it could cause an intermittent hesitation and lacking gas mileage.

 

On the other hand, there are also many hundreds of different options for the check engine light to come on, many that can cause similar symptoms.

 

The Genuine Subaru Replacment sensor for your model is just shy of $200. Add $150 or so to install and diagnose the failure. This is assuming that is the problem.

 

Dan