We'll I'm getting 17mpg:eek: I checked plugs and they were new autolites, changed them to NGK V powers and new air filter. It's got 90k so I'm thinking might be time for a O2 sensor. Found a Denso for $95 are these any good? wheres the Best place to get a cheap one that works good. Thanks

 

http://cgi.ebay.com/ebaymotors/SUBARU-IMPREZA-LEGACY-OUTBACK-00-02-OXYGEN-SENSOR-O2_W0QQcmdZViewItemQQcategoryZ33557QQihZ013QQitemZ230009354348QQrdZ1QQsspagenameZWD1V

Dude for that price you could easily just buy from an online Subaru dealer and know you got the correct OE part (maybe it is that Denso I don't know).

Cheap is not what you want; OE is what you want. Was your 2000 impacted by the recall? My '00OBW front O2 sensor was replaced under recall something about some piece could break off (I only had one front O2 sensor, not sure how many banks you have?) Good call on the NGK plugs.

I just got an OEM front oxygen sensor for my 2kOB - I think it was $96 shipped. Now I just have to find it so I can change it.

Thanks guys looks like I can get one from 1stsubaru for about $96 so will do that.