TeamFaust
Member
2008 JKU with 125,000 miles is throwing PO420 code (Right / Passenger side, yes?) and I need to get it pass emissions testing (in Arizona).
Tried replacing both O2 sensors on that side and all seemed good after I cleared the code until about 90 miles later (when CMU started "reporting" again) and bam code back. I'm guessing Cat replacement time so looking for some input from those that have actually replaced them -- ideally OEM would be great but budget is tight and reviews on a number of Amazon/eBay options look promising ($250-$300 range). I would love to get some input on anyone's experiences / recommendation on any of these.
Also anything else (other than the O2 sensors) that I should do while I'l in there -- I do plan to inspect exhaust manifolds etc for cracks / exhaust leaks as well.
Thanks in advance for your sharing.
Tried replacing both O2 sensors on that side and all seemed good after I cleared the code until about 90 miles later (when CMU started "reporting" again) and bam code back. I'm guessing Cat replacement time so looking for some input from those that have actually replaced them -- ideally OEM would be great but budget is tight and reviews on a number of Amazon/eBay options look promising ($250-$300 range). I would love to get some input on anyone's experiences / recommendation on any of these.
Also anything else (other than the O2 sensors) that I should do while I'l in there -- I do plan to inspect exhaust manifolds etc for cracks / exhaust leaks as well.
Thanks in advance for your sharing.