aanthon23

thanks davidsain, I will try this asap and let you know what happens. and thanks for the advice on catalytic converters too

Hi, I am new to this forum. I was hoping to get some advice on my new outback. Its a limited 5spd with 141k miles. the check engine light has come on and gone off a few times since i bought it, but now its been on for a while. i borrowed a code reader and it came up with the all too common p0420 code meaning the catalytic converter isn't operating at effienciency. It also showed code p1139 or "oxygen sensor heater curcuit malfunction" I was hoping this means that if i replace the o2 sensor the p0420 might go away too. I'm looking (and praying) for a cheap fix, i really dont wan to have to replace the cat. Has anyone else dealt with this issue or a similar issue? should i replace the o2 sensors or might these two codes indicate a deeper problem? any advice is welcome, thanks