* Catalyst damage: Unburned fuel entering the catalytic converter can overheat it and cause catastrophic failure.
* Engine damage: Continuous misfires can damage pistons, valves, and other internal components.
Do not ignore a flashing check engine light. Pull over to a safe location as soon as possible and have the vehicle towed or inspected by a mechanic. Continuing to drive with a flashing check engine light significantly increases the risk of expensive repairs.
While a solid check engine light often points to a less urgent issue, the flashing light is a clear warning of immediate danger.