Car Trembles, Check Engine Light Glares A Diagnostic Challenge

Mainly due to faulty ignition coils or spark plugs. It could also be something more serious like a fuel pump issue, or a fuel injector failure. I just got the car back. The car has a check engine light (solid most of the time + blinking when i drive over 45mph then goes back to solid) ... Flashing check engine light indicates misfire. The misfire is detected by the computer watching the RPM and notices a cylinder isn't pulling it's weight. Flashing CEL ? Sounds like a misfire. Maybe needs new plugs or wires. Maybe clogged injector. Please report back. It's the spark plug and ignition coil. It could be one or more. How I checked was kept the car running and just started unplugging each ignition ... I have a 2012 Outback that has started shaking while driving on the interstate twice now. It starts to shake and the check engine light comes on. The engine light had been on for about a year with not really any signs of any trouble, other than slight jerking when accelerating out of a turn or a stop. check engine light is on and is blinking and the engine is shaking a little... . any comments? or experiences with this ? car: 09 accord ... Blinking check engine light, as well as your symptoms, indicate a misfire. Also since it is blinking and not solid, it is bad enough that if not taken care of ... Shaking engine with flashing CEL is a misfire, caused by above. Typically not plugs (unless one suddenly failed altogether; that prob wont be caused by ...