Close
Q:

When the engine loose power and misfiring. on 1994 Mercedes-Benz E420

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Will the catalytic converter be damage due to excessive heat.
(2) Answers
They can handle a lot of heat but yes they can get too hot. You can have it tested. Ignition problems can often cause cat failure or just age but make sure to resolve any issues before replacing them or the new ones could fail as well. Fuel problems like running lean can poison them too.