One problem related to catalytic convertor has been reported for the 2005 Nissan 350Z. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Nissan 350Z based on all problems reported for the 2005 350Z.
2005 Nissan ,xterra, consumer drove the car less than 150 miles, and the first time it had been driven above 65 mph. Heard a pinging noise, pulled off the road, noticed smoke coming out of engine and exhaust. However, did not see any fire, but called the fire department. The car was at dealership, and they replaced the engine block and catalytic converter.