Wagonbacker9
Member
- :
- 2004 'Hoe
I threw codes last week. One was for the first O2 sensor which I replaced yesterday morning. The other is P0421 "Warm-Up Catalyst Below Threshold." I guess running rich for the last few years wore out my catalytic converter. I can't believe Apex doesn't make them anymore. <sigh>
that could also be an 02 sensor issue, I'd give the car a couple weeks on the new O2 before I worried...