Need a ton of help

What is your question?

2001 Lexus GS 430 107,000 Miles My car shakes when idle and when I start it, while it's warming up. Check engine light is on and blinks from time to time. I read a few things online. To check and change the spark plugs and the coils and check the motor mounts. So I did all that. I've changes the plugs and coils, I also had someone check the motor mounts they say it's good. So the question is where do I go from here? What else could it be? Or do I just give up on the car?

How long has your 2001 Lexus GS430 had this problem?

Two months or more with this problem