Incredible Check Engine Light Flashes Then Went Away Ideas. It’s imperative that you stop driving immediately when the check engine light starts flashing. Check engine light flashes 3 or 4 times then goes off could be a sign of an engine misfire.
Carbon buildup on the back of the intake valve 3. Your car checks all of the systems as you drive and when the emissions systems are not fully ready, the light will flash and then eventually stop after several driving cycles. A misfire can occur at engine startup while the vehicle is idling or in the middle of acceleration.
