I installed a set of Kinetix HFCs about 8 months ago because hmshe had a crack in her left converter so i decided to just upgrade them instead of stock replacements for obvious reasons.

Now her car is throwing both codes. We put in two new rear O2 sensors at the same time. The car has 132,000 miles and as far as i know the plugs have never been done. Anything i should look at that may cause both codes to come up? I emailed Kinetix and theyve gotten back to me sayibg ita odd for both codes to come up and if a cat is defective usually only one code comes up. Thanks!

 

Bump!