Famous Ecoboost Flashing Check Engine Light References. Web the most common cause of flashing or blinking check engine light is a misfiring engine, which can be caused by several different engine issues. I scanned it with my bluedriver and saw misfire codes.
If the sensor detects issues that your vehicle’s fuel is too rich (not enough air) or too lean (too much air, the eml might turn on. When a spark plug stops operating, the cylinder it’s connected to can misfire. Ideally, you will want to troubleshoot the vehicle and check the dtcs to find out what’s causing the issues.
