NHTSA Complaint #11422587 — 2012 MITSUBISHI LANCER

Approximately May, 2020, prior to getting the vehicle inspected, code P0420 indicated a faulty catalytic converters. At this time, the vehicle had an estimated 170,000 miles on it so I replaced the catalytic converter, not thinking much of it. The we’re not further issues for about a year until June, 2021, when, once again, the computer started reading a P0420 code. Having only 30,000 - 40,000 miles, on it, and seeing no leaks in the exhaust or anything else that should cause a catalytic converter to go bad prematurely, there is clearly something else causing this issue.