Is this a ULEV 2.5 or a 3.0?
Either way, LTFT is too high. The ECM is adding fuel which indicates a lean condition. The Calc Load is also up a bit. Where do you buy your gasoline? High alcohol content requires a higher volume of fuel shot.
How long was the engine running when this was taken? Temp is a little low.
If you haven't perused them yet, here are a couple threads of interest:
http://www.subaruoutback.org/forums/66-problems-maintenance/49537-p0420-diag.html
http://www.subaruoutback.org/forums...spective-p0420-catalytic-efficiency-code.html
.
Either way, LTFT is too high. The ECM is adding fuel which indicates a lean condition. The Calc Load is also up a bit. Where do you buy your gasoline? High alcohol content requires a higher volume of fuel shot.
How long was the engine running when this was taken? Temp is a little low.
If you haven't perused them yet, here are a couple threads of interest:
http://www.subaruoutback.org/forums/66-problems-maintenance/49537-p0420-diag.html
http://www.subaruoutback.org/forums...spective-p0420-catalytic-efficiency-code.html
.