Has anybody else had to replace their front oxygen sensor recently?
A couple of months back my car dropped into limp home mode while I was driving on the interstate. A little disconcerting but my XV kept chugging along albeit with much reduced gas mileage.
I took it straight to my local Subaru specialist and they couldn't figure out what was wrong with it. They finally called the local Subaru dealer to see if they could get any clues and decided it had to be the front oxygen sensor.
I didn't have the resources at the time to get that replaced and just followed their recommendations to use top tier, mid grade (89 octane) gasoline until I could bring it back in for a replacement with the strong warning that I was shortening the life of my catalytic converter the longer I waited.
In the three months I drove on the "failed" front sensor the car never dropped back into limp home mode again but the fuel economy never fully recovered. (The 28.8 mpg highway driving including the expected drop associated with winter driving.) I also purchased an ODB II bluetooth reader and app to monitor performance on my phone. Sure enough, O2 sensor #1 was ready nothing....
So, I finally took it back in to get the oxygen sensor replaced and viola! Fuel economy recovered dramatically....for about 8 days... then it tanked again. Still no limp home mode but another look at the ODB II and sure enough the O2 sensor is reading nothing.
I am going to double check my tire pressure and my intake air filter in the mean time....
What is the typical impact of temperature on mileage for you all?
Have any of you had similar issues?
A couple of months back my car dropped into limp home mode while I was driving on the interstate. A little disconcerting but my XV kept chugging along albeit with much reduced gas mileage.
I took it straight to my local Subaru specialist and they couldn't figure out what was wrong with it. They finally called the local Subaru dealer to see if they could get any clues and decided it had to be the front oxygen sensor.
I didn't have the resources at the time to get that replaced and just followed their recommendations to use top tier, mid grade (89 octane) gasoline until I could bring it back in for a replacement with the strong warning that I was shortening the life of my catalytic converter the longer I waited.
In the three months I drove on the "failed" front sensor the car never dropped back into limp home mode again but the fuel economy never fully recovered. (The 28.8 mpg highway driving including the expected drop associated with winter driving.) I also purchased an ODB II bluetooth reader and app to monitor performance on my phone. Sure enough, O2 sensor #1 was ready nothing....
So, I finally took it back in to get the oxygen sensor replaced and viola! Fuel economy recovered dramatically....for about 8 days... then it tanked again. Still no limp home mode but another look at the ODB II and sure enough the O2 sensor is reading nothing.
I am going to double check my tire pressure and my intake air filter in the mean time....
What is the typical impact of temperature on mileage for you all?
Have any of you had similar issues?