Engine Codes/idle Vibration '02 Celica Gts

[tecmusic]

Hey all!

I am a new member to this forum, so bare with me!

So here's the story (I need your help, whoever can help of course):

I have a 2002 Toyota Celica GT-S (Stock)

I LOVE MY CAR...

Back in September of last year (2013), my engine blew (Due to poor oil change maintenance on my part)

After 6 long months, due to many complications and what not, I received my car in March, everything was looking great! One small thing was that I always had a power steering leak, but never had the money to fix it. Next, what do ya know?, my luck! The car starts making sounds like if I was passing through a ton of rocks on the road, BAM! Rack & Pinion needs to be replaced, along with a new power steering pump, belt, and whatever other nick-nacks had to be replaced.

THEN, my radiator fans went out, had to replace those, head gasket AND water pump also had to be replaced.

Okay cool! Everything is fixed!

WRONG, or so I think, the check engine light has been on since I got the car back from the mechanic (I got it back on September 9th 2014), so I brought it to auto zone to see what codes it was showing, because I also noticed when I was idle (waiting at a red light), the car/engine would do a small vibration (sounded like an autobot ready to transform, ha! Just kidding, but it was vibrating).

So anyway, the guy at auto zone tells me the following codes:

P0300
P0303
P0304
& the oh so wonderful P1439

So pretty much cylinder misfires and a VVT System fault (on bank 1)

The guy at auto zone said either the cylinders are causing the VVT system to fail or visa-versa.

So in conclusion my question is....

WHAT IN THE HECK IS WRONG NOW!???!

Any advice, suggestions, comments, HELP? lol

Thanks fam!
I'll be waiting to hear from you all!

Be Blessed!