ok gents, the mystery of the misfire, rough idle, and a s*it load of codes has been solved! after reading tons of threads on here about coils, MAF sensor, TB, and every other suggestion i have figured out the problem.
p0303- cyl 3 misfire
another code cant remember about bank 1 being too lean and a few others.
car would idle rough, spit and sputter. after swapping coils, fuel injectors, cleaning MAF and TB, changing spark plugs and wires, nothing was working. with car running unplugged each injector to test, cyl 3 had no change. removed fuel rail to check the inj individually by unplugging the other 3 and placing a bag over active cyl and cranked, inj works. i have previously checked the spark by doing the same by unplugging wires and from what i can remember it was giving spark. removed cyl 3 plug and inspected piston head, and found very wet.
after inspecting the entire fuel inj and coil control harness by removing it and checking wires and plugs found no problems. however when reinstalled everything and tested it, it worked perfectly. test drove it with no problems what so ever. so the only thing i can tell you to check is the main connector for that harness to the left of the intake manifold. thats the only thing i hadnt touched b4 now. so if you're having this problem check that plug before you do anything else!!! the dealers couldnt even figure this out!! good luck guys.