Subaru Forester Oxygen Sensor

Hi, When Car Is Started Cold It Runs Ok For About 1 Minute Then Starts To Run Rough With No Power. Once It Has Warmed Up Completely It Is...

I Need To Know If I Can Fix My Own O2 Senser And How Do I Do It And Where Is It

Starts And Idles For A Few Seconds Then Dives. Will Start Again But Dies In Second. Does Not Miss Or Idle Rough. Have Put A New Fuel...

Could You Tell Me Which O2 Sensor Needs Replacing If The Code Readout Indicates "sensor 1 Bank 2"? The Engine Type Is Ej253 - Awzvb....