Autozone pulled my code today; it was P0420, indicating catalytic converter. The check engine light had come on the day before. The car has 106000 miles and the timing belt was changed last week by Honda dealer (complete with water pump, seals, etc). Is it normal for converters to fail after this mileage? The car has been well taken care of. 99 Accord EX 4-cyl 106000 miles The Autozone dealer recommended that if I replace converter, Honda dealer should do the work.