While visiting my daughter here in Las Vegas she started having trouble with her Toyota Avalon. It would run great for a 10 or 15 minutes then start running on 3 cylinders. She went to Auto Zone where they ran the code and suggested she replace the spark plugs which she did. Didn't work. They then suggested the coils. Didn't work either. I looked up Toyota repair shops trying to avoid dealerships. Came across Japanese Car Service and Yelp review were good so tried them.
They got the problem diagnosed and repaired and at a reasonable price. Almost two months now and still running great!
I don't think you can go wrong here. Seem like very honest people.