Tl* the contact owns a 2002 nissan altima. the contact stated that while operating the vehicle, the engine would misfire and the oxygen sensor would remain illuminated. the vehicle was taken to an independent mechanic who diagnosed that the catalytic converter needed to be replaced. the oxygen sensor was replaced and the oxygen sensor light shut off. the cause of the catalytic converter failure was not determined. the manufacturer and local dealer was not notified of the failures. the vin was not available. the failure mileage was 251,000.
Our car has shut off at any speed without warning for several months. the check engine light has also been on.