The past month, I have been struggling with the check engine light as well as the StabiliTrak system. The car normally runs fine unless I get anywhere above 3kish RPM, which leads to the engine stuttering, the check engine light flashing, and the StabilitTrak light coming on. The engine light will flash for about 30 seconds and either switch on constantly or cut off. The StabiliTrak light will stay on until I turn the car off. I scanned for codes and it threw a P0304 code. Pretty weird as I just recently replaced the spark plugs and coil pack. I assume this could be a fuel injector issue, but I'm not sure.

The car will also run rough at idle. Not every time, but on occasion. I've also checked the throttle body and gas pedal, which both seem fine. Has anybody faced similar issues or have any ideas on a fix? Thanks.

 

when the light flashes at you it's saying "stop driving immediately. You're causing damage"

You need to fix your misfire ASAP. There are many , many causes. You need to perform some troubleshooting and diagnostics to get you in the right direction. Check fuel trims. visually confirm good spark, etc. You can try swapping injectors with a good cylinder.

How many miles on it?