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I just got a warranty replacement. The O2 bung is shorter on the new one and should hopefully solve the CELs.

I finally got them to warranty mine. I had to contact the vendor I purchased from to get the AA head of sales email. Once I did that I got a reply after two weeks only to get ghosted for another week. Contacted the head of sales again and they will warranty it. Sent them all of my info Tuesday...

I replaced my sensor but am still getting CELs. I reached back out to AA and they confirmed my purchase and contact info, but have since ghosted me for over two weeks and haven't responded to any of my emails. It seems like they really don't want to honor their warranty.

I've had the same issue after 1000 miles with the latest cat version and AA is also blaming my O2 sensor. CEL comes back every 100-300 miles. I've seen multiple others that are also getting CELs with the latest cat. It definitely seems like it's a problem with the AA DP. Someone theorized the...