What happens when the catalytic converter is misfired?
What happens when the catalytic converter is misfired? This is primarily due to the misfire count not exceeding the limit. But there’s another way Ford protects the catalytic converter during misfire conditions. The misfire section of the OBD II document explains that if the PCM determines a cylinder is misfiring, the fuel injector can be turned off to protect the catalyst from damage. What kind of misfires do Ford cars have? For example, it will illuminate steady for a Type B misfire or flash if there’s a Type A catalyst-damaging misfire. Once again, the car manufacturer will establish the limits...