Toyota - Camry :: 1998 - Engine Kicking When Idling Or Accelerating

I got a 1998 Toyota Camry with 2.2L 4 cylinders and have almost 210K miles on it.

Starting about 2 months ago, I was experiencing some minor engine kicking when it was either idling or accelerating, not really such a big deal. About a month ago, I took it to my mechanic shop and he told me that I need to clean up the throttle body. I took his advice, let him did the work and the car still doing the same thing. I did a lot of research on the internet and many people suggested replacing the spark plugs and after I replace the plugs (Bosch, not something cheap), the situation got even worse.

The engine starts kicking more frequently and violently and the “Check Engine” light came on (and flashing). I took my car to a local auto parts store and have their people get the error code for me, it was something about engine misfire and they told me I should have my mechanic to take a look.I took the car back to my mechanic, 2 days later when I called him for update, he told me the cause of the problem was the spark plug cables didn’t plugged in securely. But just before I drove off the mechanic’s parking lot, the engine did it again. I didn’t go back to ask my mechanic because I truly believe he did not want to spend any more time on my car.

Here are the current conditions of my car,

•It never fail to start when the engine is cold or warm
•When I stopped at traffic light, the engine ran smoothly, after about 10 to 20 seconds of idling, it starts kicking. It will do this no matter if my gear in in P, R, N or D.
•When the car is completely stop and then I press the accelerator, the engine will act like it’s going to choke and if I keep holding the accelerator, 2 to 5 seconds later it will rev up and going
•I will be even worse if I have my AC on.
•It runs smoothly if it on the highway
•It always acting up if I try to make a 90 degree right turn and never happens on a left turn
•The “Check Engine” light did come up again but went away 2 days later.
•I made a hard brake yesterday and it took the car about 15 seconds to be able to rev up the engine again.