#check engine light flashing

Check Engine Light flashing is not just another dashboard annoyance. It is one of the most urgent warnings your vehicle can display. Unlike a steady check engine light, a flashing one signals an active misfire severe enough to damage your catalytic converter — sometimes within minutes. In the U.S., thousands of drivers ignore this warning every year. The result? Engine damage, melted catalytic…

What it means if you have a Flashing check engine light “Catalyst Damaging Misfire”

In this video I will go over and what it means if you have a flashing check engine light. And typically with a flashing check engine light, it means you have a catalyst damaging misfire.

I was working on a Toyota 4Runner in this video and removed and inspected the ignition coil. The computer was setting a P0304 for a cylinder 4 misfire. But any cylinder misfire can cause a flashing check engine…